{"title":"Rain Water Harvesting \u0026 Rain Alarm School Project — Chennai","description":"\u003cp\u003e\u003cstrong\u003eGo Science\u003c\/strong\u003e is a multi-channel STEM and school project kit retailer — shop online at goscience.in or visit the \u003cstrong\u003eGo Science Chennai T. Nagar Store\u003c\/strong\u003e (12, Sivaprakasam Street, T. Nagar, Chennai — 600017, Tamil Nadu). Every kit is stocked, quality-checked, and dispatched directly.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eGo Science Rain Water Harvesting \u0026amp; Rain Alarm School Project Kit (₹649)\u003c\/strong\u003e is a pre-assembled 2-in-1 working model for \u003cstrong\u003eGrades 7–12\u003c\/strong\u003e. It demonstrates two water conservation concepts in one kit — a rainwater harvesting model showing collection and storage of rainwater, and a rain alarm circuit that triggers an alert when water is detected. Both modes together demonstrate sustainable water management and sensor-based automation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCurriculum relevance:\u003c\/strong\u003e Supports CBSE and NCERT Physics, Biology, and Environmental Science concepts — water conservation, rainwater harvesting, conductivity-based sensors, alarm circuits, and sustainable resource management.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow to get it in Chennai:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOrder online — delivered to your door in \u003cstrong\u003e60 minutes\u003c\/strong\u003e across Chennai\u003c\/li\u003e\n\u003cli\u003eVisit the \u003cstrong\u003eGo Science Chennai T. Nagar Store\u003c\/strong\u003e — browse, buy, and take it home the same day\u003c\/li\u003e\n\u003cli\u003eIn-store pickup available in 60 minutes after ordering online\u003c\/li\u003e\n\u003cli\u003eSame price online and in-store: \u003cstrong\u003e₹649\u003c\/strong\u003e. No delivery surcharge.\u003c\/li\u003e\n\u003cli\u003eStore hours: Monday–Saturday, 11 AM–8 PM  |  +91 44 4858 1200\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"rain-water-harvesting-and-rain-water-alarm-school-project-demonstration-kit-2in1","title":"Rain water harvesting \u0026 Rain Alarm school project \u0026 Water Conservation 2 in 1  demonstration kit go science classroom series","description":"\u003ch1 data-section-id=\"fnmrnq\" data-start=\"0\" data-end=\"43\" class=\"PDq2pG_selectionAnchorContainer\"\u003eRainwater Harvesting Model \u0026amp; Rain Alarm Go Science Classroom Series\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1ns7kq2\" data-start=\"44\" data-end=\"117\"\u003e2-in-1 Pre-Wired School Project \u0026amp; Water Conservation Demonstration Kit\u003c\/h2\u003e\n\u003ch3 data-section-id=\"14mvzvj\" data-start=\"119\" data-end=\"201\"\u003eDetect the rain. Hear the alert. Follow the water. See conservation in action.\u003c\/h3\u003e\n\u003cp data-start=\"203\" data-end=\"337\"\u003eTurn rain detection, electrical conductivity, gravity-driven water flow and water conservation into one connected learning experience.\u003c\/p\u003e\n\u003cp data-start=\"203\" data-end=\"337\"\u003e\u003ciframe width=\"1012\" height=\"569\" src=\"https:\/\/www.youtube.com\/embed\/kerRuEaY_4Q\" title=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp data-start=\"339\" data-end=\"498\"\u003eThe \u003cstrong data-start=\"343\" data-end=\"414\"\u003eGo Science Classroom Series Rainwater Harvesting Model \u0026amp; Rain Alarm\u003c\/strong\u003e brings two complementary demonstrations together on one pre-wired working platform:\u003c\/p\u003e\n\u003ch3 data-section-id=\"1llbggz\" data-start=\"500\" data-end=\"525\"\u003eElectronic Rain Alarm\u003c\/h3\u003e\n\u003cp data-start=\"527\" data-end=\"613\"\u003eWater droplets reach the conductive rain-sensor plate and activate an audible warning.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rsdjk7\" data-start=\"615\" data-end=\"645\"\u003eRainwater Harvesting Model\u003c\/h3\u003e\n\u003cp data-start=\"647\" data-end=\"774\"\u003eThe same water is collected from the roof area, channelled through a transparent pipe and directed into the model storage tank.\u003c\/p\u003e\n\u003cp data-start=\"776\" data-end=\"819\"\u003eStudents can observe the complete sequence:\u003c\/p\u003e\n\u003cp data-start=\"821\" data-end=\"903\"\u003e\u003cstrong data-start=\"821\" data-end=\"903\"\u003eDetect Rain → Sound the Alert → Collect the Water → Follow the Flow → Store It\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"905\" data-end=\"1123\"\u003eThe model combines sensor electronics with a visible water-management system, helping students understand both how rainfall can be detected and how rooftop runoff can be collected instead of being allowed to flow away.\u003c\/p\u003e\n\u003cp data-start=\"1125\" data-end=\"1384\"\u003eDesigned for \u003cstrong data-start=\"1138\" data-end=\"1153\"\u003eGrades 7–12\u003c\/strong\u003e, it is suitable for school projects, science exhibitions, classroom demonstrations, environmental-science activities and water-conservation presentations.\u003c\/p\u003e\n\u003ch1 data-section-id=\"z03tw8\" data-start=\"1391\" data-end=\"1436\"\u003eTwo Demonstrations. One Connected Platform.\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1boy43k\" data-start=\"1438\" data-end=\"1486\"\u003eExplore technology and conservation together.\u003c\/h2\u003e\n\u003cp data-start=\"1488\" data-end=\"1611\"\u003eThe 2-in-1 design allows students to observe two different scientific processes operating within the same contextual model.\u003c\/p\u003e\n\u003ch3 data-section-id=\"a3fgne\" data-start=\"1613\" data-end=\"1649\"\u003eRain Detection and Audible Alert\u003c\/h3\u003e\n\u003cp data-start=\"1651\" data-end=\"1821\"\u003eThe water-sensor plate contains exposed parallel conductive tracks. Under dry conditions, the electrical path between the tracks remains open and the buzzer stays silent.\u003c\/p\u003e\n\u003cp data-start=\"1823\" data-end=\"1967\"\u003eWhen water droplets bridge the tracks, the electrical condition changes and the connected active buzzer produces an audible rain-alert response.\u003c\/p\u003e\n\u003ch3 data-section-id=\"13abube\" data-start=\"1969\" data-end=\"2009\"\u003eCollection, Gravity Flow and Storage\u003c\/h3\u003e\n\u003cp data-start=\"2011\" data-end=\"2183\"\u003eWater applied to the roof and collection area is guided into the fitted collector tray. It then travels through the transparent hose pipe and enters the model storage tank.\u003c\/p\u003e\n\u003cp data-start=\"2185\" data-end=\"2310\"\u003eThe clear tube allows students to see the water moving through the system, making the harvesting process directly observable.\u003c\/p\u003e\n\u003cp data-start=\"2312\" data-end=\"2379\"\u003eTogether, the two demonstrations create a clear functional journey:\u003c\/p\u003e\n\u003cp data-start=\"2381\" data-end=\"2448\"\u003e\u003cstrong data-start=\"2381\" data-end=\"2448\"\u003eRainfall → Detection → Alert → Catchment → Conveyance → Storage\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch1 data-section-id=\"1hjr29d\" data-start=\"21664\" data-end=\"21684\"\u003eWhat’s in the pre assembled Kit?\u003c\/h1\u003e\n\u003cul data-start=\"21686\" data-end=\"22494\"\u003e\n\u003cli data-section-id=\"16xy4rb\" data-start=\"21686\" data-end=\"21723\"\u003ePre-wired water-sensor module plate\u003c\/li\u003e\n\u003cli data-section-id=\"6vm6m8\" data-start=\"21724\" data-end=\"21752\"\u003ePre-wired 5V active buzzer\u003c\/li\u003e\n\u003cli data-section-id=\"vj52rd\" data-start=\"21753\" data-end=\"21774\"\u003eHouse display model\u003c\/li\u003e\n\u003cli data-section-id=\"17et5gu\" data-start=\"21775\" data-end=\"21813\"\u003eRoof-integrated water collector tray\u003c\/li\u003e\n\u003cli data-section-id=\"fcsdy6\" data-start=\"21814\" data-end=\"21848\"\u003eTransparent fluid-flow hose pipe\u003c\/li\u003e\n\u003cli data-section-id=\"1vprj5p\" data-start=\"21849\" data-end=\"21885\"\u003eMiniature black model storage tank\u003c\/li\u003e\n\u003cli data-section-id=\"ednrwx\" data-start=\"21886\" data-end=\"21942\"\u003eInk filler or dropper for controlled water application\u003c\/li\u003e\n\u003cli data-section-id=\"1dkujop\" data-start=\"21943\" data-end=\"21975\"\u003ePre-connected electrical wires\u003c\/li\u003e\n\u003cli data-section-id=\"myf71m\" data-start=\"21976\" data-end=\"22000\"\u003eBattery snap connector\u003c\/li\u003e\n\u003cli data-section-id=\"vqvnw4\" data-start=\"22001\" data-end=\"22032\"\u003eWooden battery-mounting block\u003c\/li\u003e\n\u003cli data-section-id=\"26qhle\" data-start=\"22033\" data-end=\"22067\"\u003eDecorative artificial-grass base\u003c\/li\u003e\n\u003cli data-section-id=\"19u4i7m\" data-start=\"22068\" data-end=\"22108\"\u003eReady-to-use educational working model\u003c\/li\u003e\n\u003cli data-section-id=\"1a44xy5\" data-start=\"22109\" data-end=\"22151\"\u003eQR access to the detailed digital manual\u003c\/li\u003e\n\u003cli data-section-id=\"1h8mwo0\" data-start=\"22152\" data-end=\"22209\"\u003eDetailed 19-page full-colour digital instruction manual\u003c\/li\u003e\n\u003cli data-section-id=\"1gzewut\" data-start=\"22210\" data-end=\"22265\"\u003eQR access to the video demonstration from the kit box\u003c\/li\u003e\n\u003cli data-section-id=\"1nwy0n7\" data-start=\"22266\" data-end=\"22294\"\u003eStep-by-step working video\u003c\/li\u003e\n\u003cli data-section-id=\"1qrzs62\" data-start=\"22295\" data-end=\"22331\"\u003eIllustrated component explanations\u003c\/li\u003e\n\u003cli data-section-id=\"1f9utue\" data-start=\"22332\" data-end=\"22364\"\u003eElectronic rain-alarm guidance\u003c\/li\u003e\n\u003cli data-section-id=\"15q0y97\" data-start=\"22365\" data-end=\"22400\"\u003eRainwater-harvesting explanations\u003c\/li\u003e\n\u003cli data-section-id=\"1cj0qo2\" data-start=\"22401\" data-end=\"22438\"\u003eTesting and troubleshooting support\u003c\/li\u003e\n\u003cli data-section-id=\"bqr02h\" data-start=\"22439\" data-end=\"22478\"\u003eSafety, cleaning and storage guidance\u003c\/li\u003e\n\u003cli data-section-id=\"1rf3i7h\" data-start=\"22479\" data-end=\"22494\"\u003eConcept recap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"22496\" data-end=\"22765\"\u003eThe box artwork and manuals confirm the sensor, buzzer, roof collector, transparent pipe, model tank, dropper, battery connector and digital-manual access.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1rc8kfz\" data-start=\"22772\" data-end=\"22793\"\u003eRequired Separately\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1kc5asn\" data-start=\"22795\" data-end=\"22808\"\u003e9V Battery\u003c\/h2\u003e\n\u003cp data-start=\"22810\" data-end=\"22850\"\u003eThe model requires one fresh 9V battery.\u003c\/p\u003e\n\u003cp data-start=\"22852\" data-end=\"22880\"\u003e\u003cstrong data-start=\"22852\" data-end=\"22880\"\u003eBattery is not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"mh7hzp\" data-start=\"22882\" data-end=\"22896\"\u003eClean Water\u003c\/h2\u003e\n\u003cp data-start=\"22898\" data-end=\"22964\"\u003eA small quantity of clean water is required for the demonstration.\u003c\/p\u003e\n\u003cp data-start=\"22966\" data-end=\"23005\"\u003e\u003cstrong data-start=\"22966\" data-end=\"23005\"\u003eWater is not supplied with the kit.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"23007\" data-end=\"23074\"\u003eUse only small, controlled quantities through the included dropper.\u003c\/p\u003e\n\u003ch1 data-section-id=\"nh62sj\" data-start=\"23081\" data-end=\"23105\"\u003eProduct Specifications\u003c\/h1\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"23107\" data-end=\"23936\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"23107\" data-end=\"23134\"\u003e\n\u003ctr data-start=\"23107\" data-end=\"23134\"\u003e\n\u003cth data-start=\"23107\" data-end=\"23123\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"23123\" data-end=\"23134\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"23145\" data-end=\"23936\"\u003e\n\u003ctr data-start=\"23145\" data-end=\"23196\"\u003e\n\u003ctd data-start=\"23145\" data-end=\"23160\" data-col-size=\"sm\"\u003eProduct type\u003c\/td\u003e\n\u003ctd data-start=\"23160\" data-end=\"23196\" data-col-size=\"sm\"\u003e2-in-1 educational working model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23197\" data-end=\"23233\"\u003e\n\u003ctd data-start=\"23197\" data-end=\"23218\" data-col-size=\"sm\"\u003eRecommended grades\u003c\/td\u003e\n\u003ctd data-start=\"23218\" data-end=\"23233\" data-col-size=\"sm\"\u003eGrades 7–12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23234\" data-end=\"23277\"\u003e\n\u003ctd data-start=\"23234\" data-end=\"23252\" data-col-size=\"sm\"\u003eDemonstration 1\u003c\/td\u003e\n\u003ctd data-start=\"23252\" data-end=\"23277\" data-col-size=\"sm\"\u003eElectronic rain alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23278\" data-end=\"23332\"\u003e\n\u003ctd data-start=\"23278\" data-end=\"23296\" data-col-size=\"sm\"\u003eDemonstration 2\u003c\/td\u003e\n\u003ctd data-start=\"23296\" data-end=\"23332\" data-col-size=\"sm\"\u003eRainwater harvesting and storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23333\" data-end=\"23383\"\u003e\n\u003ctd data-start=\"23333\" data-end=\"23350\" data-col-size=\"sm\"\u003ePrimary sensor\u003c\/td\u003e\n\u003ctd data-start=\"23350\" data-end=\"23383\" data-col-size=\"sm\"\u003eConductive water-sensor plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23384\" data-end=\"23419\"\u003e\n\u003ctd data-start=\"23384\" data-end=\"23399\" data-col-size=\"sm\"\u003eAlert output\u003c\/td\u003e\n\u003ctd data-start=\"23399\" data-end=\"23419\" data-col-size=\"sm\"\u003e5V active buzzer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23420\" data-end=\"23473\"\u003e\n\u003ctd data-start=\"23420\" data-end=\"23439\" data-col-size=\"sm\"\u003eCatchment system\u003c\/td\u003e\n\u003ctd data-start=\"23439\" data-end=\"23473\" data-col-size=\"sm\"\u003eRoof-integrated collector tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23474\" data-end=\"23514\"\u003e\n\u003ctd data-start=\"23474\" data-end=\"23489\" data-col-size=\"sm\"\u003eFlow display\u003c\/td\u003e\n\u003ctd data-start=\"23489\" data-end=\"23514\" data-col-size=\"sm\"\u003eTransparent hose pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23515\" data-end=\"23557\"\u003e\n\u003ctd data-start=\"23515\" data-end=\"23533\" data-col-size=\"sm\"\u003eStorage display\u003c\/td\u003e\n\u003ctd data-start=\"23533\" data-end=\"23557\" data-col-size=\"sm\"\u003eMiniature model tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23558\" data-end=\"23603\"\u003e\n\u003ctd data-start=\"23558\" data-end=\"23583\" data-col-size=\"sm\"\u003eWater application tool\u003c\/td\u003e\n\u003ctd data-start=\"23583\" data-end=\"23603\" data-col-size=\"sm\"\u003eDropper included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23604\" data-end=\"23633\"\u003e\n\u003ctd data-start=\"23604\" data-end=\"23627\" data-col-size=\"sm\"\u003eRainfall measurement\u003c\/td\u003e\n\u003ctd data-start=\"23627\" data-end=\"23633\" data-col-size=\"sm\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23634\" data-end=\"23662\"\u003e\n\u003ctd data-start=\"23634\" data-end=\"23656\" data-col-size=\"sm\"\u003eFiltration function\u003c\/td\u003e\n\u003ctd data-start=\"23656\" data-end=\"23662\" data-col-size=\"sm\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23663\" data-end=\"23700\"\u003e\n\u003ctd data-start=\"23663\" data-end=\"23682\" data-col-size=\"sm\"\u003eBattery required\u003c\/td\u003e\n\u003ctd data-start=\"23682\" data-end=\"23700\" data-col-size=\"sm\"\u003eOne 9V battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23701\" data-end=\"23726\"\u003e\n\u003ctd data-start=\"23701\" data-end=\"23720\" data-col-size=\"sm\"\u003eBattery included\u003c\/td\u003e\n\u003ctd data-start=\"23720\" data-end=\"23726\" data-col-size=\"sm\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23727\" data-end=\"23774\"\u003e\n\u003ctd data-start=\"23727\" data-end=\"23744\" data-col-size=\"sm\"\u003eDigital manual\u003c\/td\u003e\n\u003ctd data-start=\"23744\" data-end=\"23774\" data-col-size=\"sm\"\u003eIncluded through QR access\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23775\" data-end=\"23836\"\u003e\n\u003ctd data-start=\"23775\" data-end=\"23797\" data-col-size=\"sm\"\u003eVideo demonstration\u003c\/td\u003e\n\u003ctd data-start=\"23797\" data-end=\"23836\" data-col-size=\"sm\"\u003eProduct gallery, YouTube and box QR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23837\" data-end=\"23880\"\u003e\n\u003ctd data-start=\"23837\" data-end=\"23862\" data-col-size=\"sm\"\u003eApproximate dimensions\u003c\/td\u003e\n\u003ctd data-start=\"23862\" data-end=\"23880\" data-col-size=\"sm\"\u003e16 × 11 × 8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"23881\" data-end=\"23936\"\u003e\n\u003ctd data-start=\"23881\" data-end=\"23896\" data-col-size=\"sm\"\u003eIntended use\u003c\/td\u003e\n\u003ctd data-start=\"23896\" data-end=\"23936\" data-col-size=\"sm\"\u003eSupervised educational demonstration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"23938\" data-end=\"24076\"\u003eProduct appearance, colours, component placement and pipe routing may vary slightly according to manufacturing and component availability.\u003c\/p\u003e\n\u003ch1 data-section-id=\"cdsp2y\" data-start=\"2455\" data-end=\"2494\"\u003eA Complete Guided Learning Experience\u003c\/h1\u003e\n\u003ch2 data-section-id=\"v4iz4g\" data-start=\"2496\" data-end=\"2571\"\u003eWorking model, full-colour manual and video demonstration—all connected.\u003c\/h2\u003e\n\u003cp data-start=\"2573\" data-end=\"2791\"\u003eEvery Go Science Classroom Series kit is supported by guided learning resources that help students understand the concept, prepare the activity, conduct the demonstration and explain their observations with confidence.\u003c\/p\u003e\n\u003cp data-start=\"2793\" data-end=\"2821\"\u003eThis kit includes access to:\u003c\/p\u003e\n\u003cul data-start=\"2823\" data-end=\"3213\"\u003e\n\u003cli data-section-id=\"12k1qd3\" data-start=\"2823\" data-end=\"2874\"\u003eA detailed full-colour digital instruction manual\u003c\/li\u003e\n\u003cli data-section-id=\"1qrzs62\" data-start=\"2875\" data-end=\"2911\"\u003eIllustrated component explanations\u003c\/li\u003e\n\u003cli data-section-id=\"hj0pyw\" data-start=\"2912\" data-end=\"2945\"\u003eStep-by-step operating guidance\u003c\/li\u003e\n\u003cli data-section-id=\"1x82f7k\" data-start=\"2946\" data-end=\"2982\"\u003eElectronic rain-alarm explanations\u003c\/li\u003e\n\u003cli data-section-id=\"svqzll\" data-start=\"2983\" data-end=\"3035\"\u003eRainwater-harvesting and gravity-flow explanations\u003c\/li\u003e\n\u003cli data-section-id=\"61qkjs\" data-start=\"3036\" data-end=\"3079\"\u003eSafety, care and troubleshooting guidance\u003c\/li\u003e\n\u003cli data-section-id=\"1j0us4n\" data-start=\"3080\" data-end=\"3121\"\u003eA dedicated working video demonstration\u003c\/li\u003e\n\u003cli data-section-id=\"13qxli2\" data-start=\"3122\" data-end=\"3167\"\u003eQR access to the digital learning resources\u003c\/li\u003e\n\u003cli data-section-id=\"uyc0um\" data-start=\"3168\" data-end=\"3213\"\u003eLearning recap and project-support material\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3215\" data-end=\"3273\"\u003eThe learning journey is designed to take students through:\u003c\/p\u003e\n\u003cp data-start=\"3275\" data-end=\"3355\"\u003e\u003cstrong data-start=\"3275\" data-end=\"3355\"\u003eExplore → Understand → Watch → Prepare → Test → Observe → Explain → Complete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3357\" data-end=\"3557\"\u003eStudents can read the manual, watch the actual model in operation and return to both resources while preparing for a school presentation, project report, science exhibition or classroom demonstration.\u003c\/p\u003e\n\u003ch1 data-section-id=\"uc35dk\" data-start=\"3564\" data-end=\"3610\"\u003eDetailed Full-Colour Digital Manual Included\u003c\/h1\u003e\n\u003ch2 data-section-id=\"gb47iv\" data-start=\"3612\" data-end=\"3657\"\u003eScan, explore and revisit whenever needed.\u003c\/h2\u003e\n\u003cp data-start=\"3659\" data-end=\"3815\"\u003eA QR code supplied with the kit provides access to a dedicated digital learning manual created specifically for the Rainwater Harvesting Model \u0026amp; Rain Alarm.\u003c\/p\u003e\n\u003cp data-start=\"3817\" data-end=\"3889\"\u003eThe manual can be opened on a phone, tablet or computer and used during:\u003c\/p\u003e\n\u003cul data-start=\"3891\" data-end=\"4115\"\u003e\n\u003cli data-section-id=\"15f03x6\" data-start=\"3891\" data-end=\"3920\"\u003eInitial project preparation\u003c\/li\u003e\n\u003cli data-section-id=\"8wns25\" data-start=\"3921\" data-end=\"3947\"\u003eComponent identification\u003c\/li\u003e\n\u003cli data-section-id=\"12y2z1m\" data-start=\"3948\" data-end=\"3969\"\u003eDemonstration setup\u003c\/li\u003e\n\u003cli data-section-id=\"12uzkgd\" data-start=\"3970\" data-end=\"3990\"\u003eClassroom learning\u003c\/li\u003e\n\u003cli data-section-id=\"1bnwkld\" data-start=\"3991\" data-end=\"4020\"\u003eScience-exhibition practice\u003c\/li\u003e\n\u003cli data-section-id=\"4tplyf\" data-start=\"4021\" data-end=\"4049\"\u003eProject-report preparation\u003c\/li\u003e\n\u003cli data-section-id=\"15rfreh\" data-start=\"4050\" data-end=\"4068\"\u003eViva preparation\u003c\/li\u003e\n\u003cli data-section-id=\"z1z1u8\" data-start=\"4069\" data-end=\"4086\"\u003eTroubleshooting\u003c\/li\u003e\n\u003cli data-section-id=\"1j1lfo5\" data-start=\"4087\" data-end=\"4115\"\u003eRevision and concept recap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4117\" data-end=\"4219\"\u003eThe current manual contains \u003cstrong data-start=\"4145\" data-end=\"4179\"\u003e19 colourful illustrated pages\u003c\/strong\u003e covering the complete learning journey.\u003c\/p\u003e\n\u003cp data-start=\"4221\" data-end=\"4233\"\u003eIt includes:\u003c\/p\u003e\n\u003cul data-start=\"4235\" data-end=\"4779\"\u003e\n\u003cli data-section-id=\"im5wry\" data-start=\"4235\" data-end=\"4272\"\u003eAn introduction to the 2-in-1 model\u003c\/li\u003e\n\u003cli data-section-id=\"shvfiz\" data-start=\"4273\" data-end=\"4316\"\u003eA visual guide to the supplied components\u003c\/li\u003e\n\u003cli data-section-id=\"1w6izlj\" data-start=\"4317\" data-end=\"4358\"\u003eThe complete four-step working sequence\u003c\/li\u003e\n\u003cli data-section-id=\"5v4ocs\" data-start=\"4359\" data-end=\"4404\"\u003eWater-sensor and active-buzzer explanations\u003c\/li\u003e\n\u003cli data-section-id=\"1nxjtrx\" data-start=\"4405\" data-end=\"4446\"\u003eStep-by-step demonstration instructions\u003c\/li\u003e\n\u003cli data-section-id=\"9prvlx\" data-start=\"4447\" data-end=\"4482\"\u003eOpen- and closed-circuit concepts\u003c\/li\u003e\n\u003cli data-section-id=\"44el1h\" data-start=\"4483\" data-end=\"4517\"\u003eElectrical conductivity of water\u003c\/li\u003e\n\u003cli data-section-id=\"1wnmu8g\" data-start=\"4518\" data-end=\"4558\"\u003eRooftop catchment and water collection\u003c\/li\u003e\n\u003cli data-section-id=\"pdt6ui\" data-start=\"4559\" data-end=\"4613\"\u003eGravity-driven movement through the transparent pipe\u003c\/li\u003e\n\u003cli data-section-id=\"3if9l2\" data-start=\"4614\" data-end=\"4648\"\u003eModel-tank storage demonstration\u003c\/li\u003e\n\u003cli data-section-id=\"1bfeb52\" data-start=\"4649\" data-end=\"4675\"\u003eTroubleshooting guidance\u003c\/li\u003e\n\u003cli data-section-id=\"294w3b\" data-start=\"4676\" data-end=\"4719\"\u003eCleaning, drying and storage instructions\u003c\/li\u003e\n\u003cli data-section-id=\"7rai30\" data-start=\"4720\" data-end=\"4753\"\u003eFun facts and technical details\u003c\/li\u003e\n\u003cli data-section-id=\"18leak0\" data-start=\"4754\" data-end=\"4779\"\u003eComplete learning recap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4781\" data-end=\"5190\"\u003eThe kit contents and dimensions are presented on page 5, the four-step system sequence on page 6, component explanations on page 7, preparation and testing on pages 8–10, the electronic rain-alarm concept on page 11, mechanical harvesting on page 12, troubleshooting on page 13, cleaning and storage on page 14, learning facts on page 15 and the concept recap on page 16.\u003c\/p\u003e\n\u003ch1 data-section-id=\"19mroy9\" data-start=\"5197\" data-end=\"5240\"\u003eStep-by-Step Video Demonstration Included\u003c\/h1\u003e\n\u003ch2 data-section-id=\"5vinub\" data-start=\"5242\" data-end=\"5299\"\u003eWatch the actual model before conducting the activity.\u003c\/h2\u003e\n\u003cp data-start=\"5301\" data-end=\"5430\"\u003eEvery kit also provides access to a dedicated working video showing the physical product and its complete demonstration sequence.\u003c\/p\u003e\n\u003cp data-start=\"5432\" data-end=\"5480\"\u003eThe video helps students and parents understand:\u003c\/p\u003e\n\u003cul data-start=\"5482\" data-end=\"5870\"\u003e\n\u003cli data-section-id=\"clqf9l\" data-start=\"5482\" data-end=\"5516\"\u003eThe complete 2-in-1 model layout\u003c\/li\u003e\n\u003cli data-section-id=\"xlbcya\" data-start=\"5517\" data-end=\"5540\"\u003eThe rain-sensor plate\u003c\/li\u003e\n\u003cli data-section-id=\"10y73oi\" data-start=\"5541\" data-end=\"5582\"\u003eThe active buzzer and pre-wired circuit\u003c\/li\u003e\n\u003cli data-section-id=\"1gur4dl\" data-start=\"5583\" data-end=\"5620\"\u003eThe roof-integrated water collector\u003c\/li\u003e\n\u003cli data-section-id=\"8e5cy1\" data-start=\"5621\" data-end=\"5648\"\u003eThe transparent flow pipe\u003c\/li\u003e\n\u003cli data-section-id=\"devl93\" data-start=\"5649\" data-end=\"5673\"\u003eThe model storage tank\u003c\/li\u003e\n\u003cli data-section-id=\"1vx5a0d\" data-start=\"5674\" data-end=\"5702\"\u003eCorrect battery connection\u003c\/li\u003e\n\u003cli data-section-id=\"1epq138\" data-start=\"5703\" data-end=\"5736\"\u003eControlled application of water\u003c\/li\u003e\n\u003cli data-section-id=\"2oml8r\" data-start=\"5737\" data-end=\"5767\"\u003eActivation of the rain alarm\u003c\/li\u003e\n\u003cli data-section-id=\"4aeyk9\" data-start=\"5768\" data-end=\"5804\"\u003eMovement of water through the pipe\u003c\/li\u003e\n\u003cli data-section-id=\"1kj3ajb\" data-start=\"5805\" data-end=\"5842\"\u003eCollection of water inside the tank\u003c\/li\u003e\n\u003cli data-section-id=\"dzi5wa\" data-start=\"5843\" data-end=\"5870\"\u003eSafe shutdown and cleanup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"5872\" data-end=\"5923\"\u003eThe video can be accessed in three convenient ways:\u003c\/p\u003e\n\u003ch3 data-section-id=\"1nmiu3p\" data-start=\"5925\" data-end=\"5944\"\u003eProduct Gallery\u003c\/h3\u003e\n\u003cp data-start=\"5946\" data-end=\"6123\"\u003eThe video is included alongside the product photographs on the Go Science product page, allowing parents, teachers and students to view the actual working model before purchase.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iuekfw\" data-start=\"6125\" data-end=\"6155\"\u003eGo Science YouTube Channel\u003c\/h3\u003e\n\u003cp data-start=\"6157\" data-end=\"6296\"\u003eThe complete demonstration is also available through the official Go Science YouTube presence for convenient viewing, revision and sharing.\u003c\/p\u003e\n\u003ch3 data-section-id=\"mu6kxf\" data-start=\"6298\" data-end=\"6324\"\u003eQR Code on the Kit Box\u003c\/h3\u003e\n\u003cp data-start=\"6326\" data-end=\"6486\"\u003eA QR code printed on the side of the kit box provides quick access to the demonstration video whenever students need to revisit the setup or operating sequence.\u003c\/p\u003e\n\u003cp data-start=\"6488\" data-end=\"6532\"\u003eThis creates a continuous guided experience:\u003c\/p\u003e\n\u003cp data-start=\"6534\" data-end=\"6584\"\u003e\u003cstrong data-start=\"6534\" data-end=\"6584\"\u003eScan → Watch → Prepare → Demonstrate → Rewatch\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"6586\" data-end=\"6680\"\u003eInternet access and a compatible QR-scanning device are required to open the online resources.\u003c\/p\u003e\n\u003ch1 data-section-id=\"c01vee\" data-start=\"6687\" data-end=\"6721\"\u003ePre-Wired for Direct Exploration\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1sfjur0\" data-start=\"6723\" data-end=\"6767\"\u003eBegin with a complete working foundation.\u003c\/h2\u003e\n\u003cp data-start=\"6769\" data-end=\"6906\"\u003eThe rain-sensor plate, active buzzer, battery connector and electrical connections are integrated into the model as one pre-wired system.\u003c\/p\u003e\n\u003cp data-start=\"6908\" data-end=\"7024\"\u003eThe water collector, transparent hose pipe and storage tank are also positioned as one connected physical flow path.\u003c\/p\u003e\n\u003cp data-start=\"7026\" data-end=\"7111\"\u003eThis working foundation allows students to move directly into meaningful exploration:\u003c\/p\u003e\n\u003cul data-start=\"7113\" data-end=\"7561\"\u003e\n\u003cli data-section-id=\"opnu7y\" data-start=\"7113\" data-end=\"7159\"\u003eObserve how water changes the sensor circuit\u003c\/li\u003e\n\u003cli data-section-id=\"5mx8l7\" data-start=\"7160\" data-end=\"7190\"\u003eHear the rain-alert response\u003c\/li\u003e\n\u003cli data-section-id=\"tyutb0\" data-start=\"7191\" data-end=\"7227\"\u003eFollow the water from roof to tank\u003c\/li\u003e\n\u003cli data-section-id=\"v2nji4\" data-start=\"7228\" data-end=\"7255\"\u003eStudy gravity-driven flow\u003c\/li\u003e\n\u003cli data-section-id=\"mvuwm3\" data-start=\"7256\" data-end=\"7295\"\u003eCompare dry and wet sensor conditions\u003c\/li\u003e\n\u003cli data-section-id=\"1cwwly9\" data-start=\"7296\" data-end=\"7325\"\u003eRun repeated demonstrations\u003c\/li\u003e\n\u003cli data-section-id=\"3w69jr\" data-start=\"7326\" data-end=\"7361\"\u003eChange the quantity of water used\u003c\/li\u003e\n\u003cli data-section-id=\"13rj2e0\" data-start=\"7362\" data-end=\"7395\"\u003eRecord and compare observations\u003c\/li\u003e\n\u003cli data-section-id=\"6lor30\" data-start=\"7396\" data-end=\"7435\"\u003eInvestigate leaks or interrupted flow\u003c\/li\u003e\n\u003cli data-section-id=\"9vzaey\" data-start=\"7436\" data-end=\"7476\"\u003eUnderstand the role of every component\u003c\/li\u003e\n\u003cli data-section-id=\"1u3le97\" data-start=\"7477\" data-end=\"7518\"\u003eExplain both demonstrations confidently\u003c\/li\u003e\n\u003cli data-section-id=\"ryuwj0\" data-start=\"7519\" data-end=\"7561\"\u003eDevelop further water-conservation ideas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"7563\" data-end=\"7591\"\u003eThe model is designed to be:\u003c\/p\u003e\n\u003cp data-start=\"7593\" data-end=\"7663\"\u003e\u003cstrong data-start=\"7593\" data-end=\"7663\"\u003eObserved → Tested → Retested → Understood → Explained → Built Upon\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch1 data-section-id=\"19y3zfv\" data-start=\"7670\" data-end=\"7705\"\u003eWatch the Complete System Respond\u003c\/h1\u003e\n\u003ch2 data-section-id=\"13ef0wd\" data-start=\"7707\" data-end=\"7730\"\u003e1. Prepare the Model\u003c\/h2\u003e\n\u003cp data-start=\"7732\" data-end=\"7793\"\u003ePlace the model on a flat, stable and completely dry surface.\u003c\/p\u003e\n\u003cp data-start=\"7795\" data-end=\"7806\"\u003eCheck that:\u003c\/p\u003e\n\u003cul data-start=\"7808\" data-end=\"8015\"\u003e\n\u003cli data-section-id=\"zoo32f\" data-start=\"7808\" data-end=\"7838\"\u003eThe rain-sensor plate is dry\u003c\/li\u003e\n\u003cli data-section-id=\"ujw7co\" data-start=\"7839\" data-end=\"7870\"\u003eThe transparent pipe is clear\u003c\/li\u003e\n\u003cli data-section-id=\"1orujs5\" data-start=\"7871\" data-end=\"7915\"\u003eThe collector tray is correctly positioned\u003c\/li\u003e\n\u003cli data-section-id=\"mo2duf\" data-start=\"7916\" data-end=\"7943\"\u003eThe storage tank is empty\u003c\/li\u003e\n\u003cli data-section-id=\"ybsi9v\" data-start=\"7944\" data-end=\"7980\"\u003eThe electrical connections are dry\u003c\/li\u003e\n\u003cli data-section-id=\"1dv24is\" data-start=\"7981\" data-end=\"8015\"\u003eThe battery is not yet connected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1mn0vmp\" data-start=\"8017\" data-end=\"8040\"\u003e2. Connect the Power\u003c\/h2\u003e\n\u003cp data-start=\"8042\" data-end=\"8148\"\u003eCarefully attach a fresh 9V battery to the supplied snap connector using the correct terminal orientation.\u003c\/p\u003e\n\u003cp data-start=\"8150\" data-end=\"8204\"\u003eUnder dry conditions, the buzzer should remain silent.\u003c\/p\u003e\n\u003ch2 data-section-id=\"17shmio\" data-start=\"8206\" data-end=\"8227\"\u003e3. Apply the Water\u003c\/h2\u003e\n\u003cp data-start=\"8229\" data-end=\"8309\"\u003eUse the supplied dropper to collect a small, controlled quantity of clean water.\u003c\/p\u003e\n\u003cp data-start=\"8311\" data-end=\"8384\"\u003eApply the water carefully to the exposed sensor and roof-collection area.\u003c\/p\u003e\n\u003ch2 data-section-id=\"144mdpx\" data-start=\"8386\" data-end=\"8407\"\u003e4. Detect the Rain\u003c\/h2\u003e\n\u003cp data-start=\"8409\" data-end=\"8471\"\u003eThe water reaches the exposed conductive tracks of the sensor.\u003c\/p\u003e\n\u003cp data-start=\"8473\" data-end=\"8585\"\u003eAs the droplets bridge the tracks, the electrical path changes from an open condition to a conducting condition.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dimbai\" data-start=\"8587\" data-end=\"8608\"\u003e5. Sound the Alert\u003c\/h2\u003e\n\u003cp data-start=\"8610\" data-end=\"8691\"\u003eThe connected active buzzer receives the trigger and produces an audible warning.\u003c\/p\u003e\n\u003cp data-start=\"8693\" data-end=\"8744\"\u003eThis represents the electronic rain-alarm function.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1k24ulr\" data-start=\"8746\" data-end=\"8769\"\u003e6. Collect the Water\u003c\/h2\u003e\n\u003cp data-start=\"8771\" data-end=\"8848\"\u003eThe applied water moves from the roof profile into the fitted collector tray.\u003c\/p\u003e\n\u003cp data-start=\"8850\" data-end=\"8912\"\u003eThe tray gathers the runoff and directs it towards the outlet.\u003c\/p\u003e\n\u003ch2 data-section-id=\"7j55wg\" data-start=\"8914\" data-end=\"8943\"\u003e7. Follow the Gravity Flow\u003c\/h2\u003e\n\u003cp data-start=\"8945\" data-end=\"8993\"\u003eWater travels through the transparent hose pipe.\u003c\/p\u003e\n\u003cp data-start=\"8995\" data-end=\"9079\"\u003eStudents can watch it move from the higher roof area towards the lower storage tank.\u003c\/p\u003e\n\u003ch2 data-section-id=\"jw47xc\" data-start=\"9081\" data-end=\"9102\"\u003e8. Store the Water\u003c\/h2\u003e\n\u003cp data-start=\"9104\" data-end=\"9170\"\u003eThe water exits the pipe and collects inside the black model tank.\u003c\/p\u003e\n\u003cp data-start=\"9172\" data-end=\"9247\"\u003eThis represents the storage stage of a rooftop rainwater-harvesting system.\u003c\/p\u003e\n\u003ch2 data-section-id=\"dvlzbl\" data-start=\"9249\" data-end=\"9270\"\u003e9. Reset the Model\u003c\/h2\u003e\n\u003cp data-start=\"9272\" data-end=\"9331\"\u003eDisconnect the battery immediately after the demonstration.\u003c\/p\u003e\n\u003cp data-start=\"9333\" data-end=\"9418\"\u003eEmpty the storage tank, drain the pipe and wipe the rain-sensor plate completely dry.\u003c\/p\u003e\n\u003cp data-start=\"9420\" data-end=\"9528\"\u003eOnce the sensor tracks are dry, the circuit returns to its original condition and the buzzer remains silent.\u003c\/p\u003e\n\u003cp data-start=\"9530\" data-end=\"9555\"\u003eThe complete sequence is:\u003c\/p\u003e\n\u003cp data-start=\"9557\" data-end=\"9645\"\u003e\u003cstrong data-start=\"9557\" data-end=\"9645\"\u003eWater Detected → Buzzer Sounds → Water Collected → Gravity Moves It → Tank Stores It\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"9647\" data-end=\"9824\"\u003eThe supplied manuals and box artwork confirm the two-part electronic and mechanical working sequence.\u003c\/p\u003e\n\u003chr data-start=\"9826\" data-end=\"9829\"\u003e\n\u003ch1 data-section-id=\"1195bhf\" data-start=\"9831\" data-end=\"9866\"\u003eExplore the Electronic Rain Alarm\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1o0cafo\" data-start=\"9868\" data-end=\"9917\"\u003eSee how water can complete an electrical path.\u003c\/h2\u003e\n\u003cp data-start=\"9919\" data-end=\"9985\"\u003eThe rain-sensor plate contains parallel exposed conductive tracks.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1npclq2\" data-start=\"9987\" data-end=\"10004\"\u003eDry Condition\u003c\/h3\u003e\n\u003cp data-start=\"10006\" data-end=\"10071\"\u003eWhen the plate is dry, air occupies the space between the tracks.\u003c\/p\u003e\n\u003cp data-start=\"10073\" data-end=\"10178\"\u003eAir provides high electrical resistance, so the electrical path remains open and the buzzer stays silent.\u003c\/p\u003e\n\u003ch3 data-section-id=\"11lg8er\" data-start=\"10180\" data-end=\"10197\"\u003eWet Condition\u003c\/h3\u003e\n\u003cp data-start=\"10199\" data-end=\"10278\"\u003eWhen water droplets spread across the plate, they bridge the conductive tracks.\u003c\/p\u003e\n\u003cp data-start=\"10280\" data-end=\"10382\"\u003eThe water creates a path that changes the circuit condition and activates the pre-wired active buzzer.\u003c\/p\u003e\n\u003cp data-start=\"10384\" data-end=\"10405\"\u003eStudents can explore:\u003c\/p\u003e\n\u003cul data-start=\"10407\" data-end=\"10694\"\u003e\n\u003cli data-section-id=\"dke3gt\" data-start=\"10407\" data-end=\"10433\"\u003eRain and water detection\u003c\/li\u003e\n\u003cli data-section-id=\"1w7k2qi\" data-start=\"10434\" data-end=\"10463\"\u003eOpen and completed circuits\u003c\/li\u003e\n\u003cli data-section-id=\"f3evmn\" data-start=\"10464\" data-end=\"10491\"\u003eConductors and insulators\u003c\/li\u003e\n\u003cli data-section-id=\"78w739\" data-start=\"10492\" data-end=\"10515\"\u003eElectrical resistance\u003c\/li\u003e\n\u003cli data-section-id=\"l3m4gs\" data-start=\"10516\" data-end=\"10542\"\u003eConductive sensor tracks\u003c\/li\u003e\n\u003cli data-section-id=\"1drqp0h\" data-start=\"10543\" data-end=\"10569\"\u003eInput and output devices\u003c\/li\u003e\n\u003cli data-section-id=\"1l6lz6w\" data-start=\"10570\" data-end=\"10588\"\u003eAutomatic alerts\u003c\/li\u003e\n\u003cli data-section-id=\"16n9fke\" data-start=\"10589\" data-end=\"10609\"\u003eWet and dry states\u003c\/li\u003e\n\u003cli data-section-id=\"oed5wi\" data-start=\"10610\" data-end=\"10642\"\u003eCause-and-effect relationships\u003c\/li\u003e\n\u003cli data-section-id=\"13d4due\" data-start=\"10643\" data-end=\"10694\"\u003eElectronic response to an environmental condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"10696\" data-end=\"10847\"\u003eThis model demonstrates the \u003cstrong data-start=\"10724\" data-end=\"10765\"\u003epresence of water on the sensor plate\u003c\/strong\u003e. It does not measure rainfall quantity, rainfall intensity or weather conditions.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1xfy15c\" data-start=\"10854\" data-end=\"10895\"\u003eFollow the Rainwater Harvesting Journey\u003c\/h1\u003e\n\u003ch2 data-section-id=\"16st4p3\" data-start=\"10897\" data-end=\"10941\"\u003eSee water move from catchment to storage.\u003c\/h2\u003e\n\u003cp data-start=\"10943\" data-end=\"11016\"\u003eThe physical harvesting section makes the complete water pathway visible.\u003c\/p\u003e\n\u003ch3 data-section-id=\"clyf3d\" data-start=\"11018\" data-end=\"11031\"\u003eCatchment\u003c\/h3\u003e\n\u003cp data-start=\"11033\" data-end=\"11094\"\u003eThe model roof represents the surface that receives rainfall.\u003c\/p\u003e\n\u003ch3 data-section-id=\"16vcmog\" data-start=\"11096\" data-end=\"11110\"\u003eCollection\u003c\/h3\u003e\n\u003cp data-start=\"11112\" data-end=\"11172\"\u003eThe fitted tray gathers water running from the roof profile.\u003c\/p\u003e\n\u003ch3 data-section-id=\"r6hl9j\" data-start=\"11174\" data-end=\"11188\"\u003eConveyance\u003c\/h3\u003e\n\u003cp data-start=\"11190\" data-end=\"11260\"\u003eThe outlet directs the collected water into the transparent hose pipe.\u003c\/p\u003e\n\u003ch3 data-section-id=\"15u37oy\" data-start=\"11262\" data-end=\"11278\"\u003eGravity Flow\u003c\/h3\u003e\n\u003cp data-start=\"11280\" data-end=\"11351\"\u003eGravity pulls the water down through the pipe without requiring a pump.\u003c\/p\u003e\n\u003ch3 data-section-id=\"w9x5of\" data-start=\"11353\" data-end=\"11364\"\u003eStorage\u003c\/h3\u003e\n\u003cp data-start=\"11366\" data-end=\"11442\"\u003eThe water enters the black model tank, representing collected-water storage.\u003c\/p\u003e\n\u003cp data-start=\"11444\" data-end=\"11508\"\u003eStudents can identify the essential rainwater-harvesting stages:\u003c\/p\u003e\n\u003cp data-start=\"11510\" data-end=\"11577\"\u003e\u003cstrong data-start=\"11510\" data-end=\"11577\"\u003eRoof Catchment → Collector → Pipe → Gravity Flow → Storage Tank\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"11579\" data-end=\"11728\"\u003eThe model helps students connect an environmental concept with a visible physical process rather than viewing rainwater harvesting only as a diagram.\u003c\/p\u003e\n\u003chr data-start=\"11730\" data-end=\"11733\"\u003e\n\u003ch1 data-section-id=\"jmaeuz\" data-start=\"11735\" data-end=\"11769\"\u003eWhy the Transparent Pipe Matters\u003c\/h1\u003e\n\u003ch2 data-section-id=\"4jwhrl\" data-start=\"11771\" data-end=\"11802\"\u003eMake water movement visible.\u003c\/h2\u003e\n\u003cp data-start=\"11804\" data-end=\"11895\"\u003eThe transparent hose pipe allows students to follow the water through the conveyance stage.\u003c\/p\u003e\n\u003cp data-start=\"11897\" data-end=\"11914\"\u003eThey can observe:\u003c\/p\u003e\n\u003cul data-start=\"11916\" data-end=\"12155\"\u003e\n\u003cli data-section-id=\"1mc0atu\" data-start=\"11916\" data-end=\"11940\"\u003eWhere the water enters\u003c\/li\u003e\n\u003cli data-section-id=\"1r8aylt\" data-start=\"11941\" data-end=\"11974\"\u003eThe direction in which it moves\u003c\/li\u003e\n\u003cli data-section-id=\"1a6ejjn\" data-start=\"11975\" data-end=\"12008\"\u003eHow gravity influences the flow\u003c\/li\u003e\n\u003cli data-section-id=\"1p2asu3\" data-start=\"12009\" data-end=\"12039\"\u003eWhether air gaps are present\u003c\/li\u003e\n\u003cli data-section-id=\"1he6qj3\" data-start=\"12040\" data-end=\"12080\"\u003eWhether the pipe is twisted or blocked\u003c\/li\u003e\n\u003cli data-section-id=\"1fb1ajy\" data-start=\"12081\" data-end=\"12117\"\u003eHow pipe position affects movement\u003c\/li\u003e\n\u003cli data-section-id=\"19ro8z3\" data-start=\"12118\" data-end=\"12155\"\u003eWhere the water exits into the tank\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"12157\" data-end=\"12227\"\u003eThe visible flow path supports both demonstration and troubleshooting.\u003c\/p\u003e\n\u003cp data-start=\"12229\" data-end=\"12378\"\u003eStudents can understand that a harvesting system depends not only on collecting water, but also on guiding it effectively from one stage to the next.\u003c\/p\u003e\n\u003ch1 data-section-id=\"kzdfrs\" data-start=\"12385\" data-end=\"12428\"\u003eUnderstand the Complete Functional System\u003c\/h1\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"12430\" data-end=\"13326\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"12430\" data-end=\"12469\"\u003e\n\u003ctr data-start=\"12430\" data-end=\"12469\"\u003e\n\u003cth data-start=\"12430\" data-end=\"12445\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSystem stage\u003c\/th\u003e\n\u003cth data-start=\"12445\" data-end=\"12457\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eComponent\u003c\/th\u003e\n\u003cth data-start=\"12457\" data-end=\"12469\" data-col-size=\"md\" class=\"last:pe-10\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"12484\" data-end=\"13326\"\u003e\n\u003ctr data-start=\"12484\" data-end=\"12559\"\u003e\n\u003ctd data-start=\"12484\" data-end=\"12510\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12486\" data-end=\"12509\"\u003eEnvironmental input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12510\" data-end=\"12527\" data-col-size=\"sm\"\u003eWater droplets\u003c\/td\u003e\n\u003ctd data-start=\"12527\" data-end=\"12559\" data-col-size=\"md\"\u003eRepresent simulated rainfall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"12560\" data-end=\"12649\"\u003e\n\u003ctd data-start=\"12560\" data-end=\"12576\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12562\" data-end=\"12575\"\u003eDetection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12576\" data-end=\"12596\" data-col-size=\"sm\"\u003eRain-sensor plate\u003c\/td\u003e\n\u003ctd data-start=\"12596\" data-end=\"12649\" data-col-size=\"md\"\u003eResponds when water bridges the conductive tracks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"12650\" data-end=\"12725\"\u003e\n\u003ctd data-start=\"12650\" data-end=\"12674\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12652\" data-end=\"12673\"\u003eElectronic output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12674\" data-end=\"12690\" data-col-size=\"sm\"\u003eActive buzzer\u003c\/td\u003e\n\u003ctd data-start=\"12690\" data-end=\"12725\" data-col-size=\"md\"\u003eProduces the audible rain alert\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"12726\" data-end=\"12785\"\u003e\n\u003ctd data-start=\"12726\" data-end=\"12742\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12728\" data-end=\"12741\"\u003eCatchment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12742\" data-end=\"12755\" data-col-size=\"sm\"\u003eModel roof\u003c\/td\u003e\n\u003ctd data-start=\"12755\" data-end=\"12785\" data-col-size=\"md\"\u003eReceives the applied water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"12786\" data-end=\"12856\"\u003e\n\u003ctd data-start=\"12786\" data-end=\"12803\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12788\" data-end=\"12802\"\u003eCollection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12803\" data-end=\"12826\" data-col-size=\"sm\"\u003eRoof-integrated tray\u003c\/td\u003e\n\u003ctd data-start=\"12826\" data-end=\"12856\" data-col-size=\"md\"\u003eGathers and directs runoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"12857\" data-end=\"12933\"\u003e\n\u003ctd data-start=\"12857\" data-end=\"12874\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12859\" data-end=\"12873\"\u003eConveyance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12874\" data-end=\"12898\" data-col-size=\"sm\"\u003eTransparent hose pipe\u003c\/td\u003e\n\u003ctd data-start=\"12898\" data-end=\"12933\" data-col-size=\"md\"\u003eCarries collected water visibly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"12934\" data-end=\"13010\"\u003e\n\u003ctd data-start=\"12934\" data-end=\"12954\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"12936\" data-end=\"12953\"\u003eDriving force\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"12954\" data-end=\"12964\" data-col-size=\"sm\"\u003eGravity\u003c\/td\u003e\n\u003ctd data-start=\"12964\" data-end=\"13010\" data-col-size=\"md\"\u003eMoves water from a higher to a lower level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"13011\" data-end=\"13084\"\u003e\n\u003ctd data-start=\"13011\" data-end=\"13025\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"13013\" data-end=\"13024\"\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"13025\" data-end=\"13038\" data-col-size=\"sm\"\u003eModel tank\u003c\/td\u003e\n\u003ctd data-start=\"13038\" data-end=\"13084\" data-col-size=\"md\"\u003eReceives and holds the demonstration water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"13085\" data-end=\"13155\"\u003e\n\u003ctd data-start=\"13085\" data-end=\"13097\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"13087\" data-end=\"13096\"\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"13097\" data-end=\"13110\" data-col-size=\"sm\"\u003e9V battery\u003c\/td\u003e\n\u003ctd data-start=\"13110\" data-end=\"13155\" data-col-size=\"md\"\u003eSupplies energy to the rain-alarm circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"13156\" data-end=\"13235\"\u003e\n\u003ctd data-start=\"13156\" data-end=\"13182\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"13158\" data-end=\"13181\"\u003eApplication context\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"13182\" data-end=\"13196\" data-col-size=\"sm\"\u003eHouse model\u003c\/td\u003e\n\u003ctd data-start=\"13196\" data-end=\"13235\" data-col-size=\"md\"\u003eRepresents rooftop water collection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"13236\" data-end=\"13326\"\u003e\n\u003ctd data-start=\"13236\" data-end=\"13259\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"13238\" data-end=\"13258\"\u003eLearning support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"13259\" data-end=\"13278\" data-col-size=\"sm\"\u003eManual and video\u003c\/td\u003e\n\u003ctd data-start=\"13278\" data-end=\"13326\" data-col-size=\"md\"\u003eGuide preparation, operation and explanation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"13328\" data-end=\"13331\"\u003e\n\u003ch1 data-section-id=\"a48czj\" data-start=\"13333\" data-end=\"13387\"\u003eA Water-Conservation Context Students Can Understand\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1b7hk9h\" data-start=\"13389\" data-end=\"13447\"\u003eConnect rainfall, technology and responsible water use.\u003c\/h2\u003e\n\u003cp data-start=\"13449\" data-end=\"13528\"\u003eThe house, collector, pipe and tank provide a recognisable application context.\u003c\/p\u003e\n\u003cp data-start=\"13530\" data-end=\"13608\"\u003eEach element represents a stage within a rooftop rainwater-harvesting concept:\u003c\/p\u003e\n\u003cul data-start=\"13610\" data-end=\"13941\"\u003e\n\u003cli data-section-id=\"1lf7vdz\" data-start=\"13610\" data-end=\"13658\"\u003eThe \u003cstrong data-start=\"13616\" data-end=\"13624\"\u003eroof\u003c\/strong\u003e represents the catchment surface.\u003c\/li\u003e\n\u003cli data-section-id=\"k1eg41\" data-start=\"13659\" data-end=\"13708\"\u003eThe \u003cstrong data-start=\"13665\" data-end=\"13681\"\u003esensor plate\u003c\/strong\u003e represents rain detection.\u003c\/li\u003e\n\u003cli data-section-id=\"cctest\" data-start=\"13709\" data-end=\"13768\"\u003eThe \u003cstrong data-start=\"13715\" data-end=\"13725\"\u003ebuzzer\u003c\/strong\u003e communicates that water has been detected.\u003c\/li\u003e\n\u003cli data-section-id=\"1v9aelf\" data-start=\"13769\" data-end=\"13813\"\u003eThe \u003cstrong data-start=\"13775\" data-end=\"13793\"\u003ecollector tray\u003c\/strong\u003e gathers the runoff.\u003c\/li\u003e\n\u003cli data-section-id=\"1bbddz8\" data-start=\"13814\" data-end=\"13859\"\u003eThe \u003cstrong data-start=\"13820\" data-end=\"13840\"\u003etransparent pipe\u003c\/strong\u003e carries the water.\u003c\/li\u003e\n\u003cli data-section-id=\"w3fix\" data-start=\"13860\" data-end=\"13894\"\u003eThe \u003cstrong data-start=\"13866\" data-end=\"13874\"\u003etank\u003c\/strong\u003e represents storage.\u003c\/li\u003e\n\u003cli data-section-id=\"qjjp3f\" data-start=\"13895\" data-end=\"13941\"\u003eThe \u003cstrong data-start=\"13901\" data-end=\"13912\"\u003ebattery\u003c\/strong\u003e powers the electronic alert.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"13943\" data-end=\"13976\"\u003eThe model helps students explain:\u003c\/p\u003e\n\u003cul data-start=\"13978\" data-end=\"14289\"\u003e\n\u003cli data-section-id=\"t9r9nf\" data-start=\"13978\" data-end=\"14010\"\u003eWhy rainwater can be collected\u003c\/li\u003e\n\u003cli data-section-id=\"8spp01\" data-start=\"14011\" data-end=\"14049\"\u003eHow rooftop runoff can be redirected\u003c\/li\u003e\n\u003cli data-section-id=\"1o8kbfu\" data-start=\"14050\" data-end=\"14090\"\u003eWhy gravity is useful in water systems\u003c\/li\u003e\n\u003cli data-section-id=\"1kh3zv2\" data-start=\"14091\" data-end=\"14141\"\u003eHow detection and conservation can work together\u003c\/li\u003e\n\u003cli data-section-id=\"qz31n0\" data-start=\"14142\" data-end=\"14200\"\u003eHow visible infrastructure supports system understanding\u003c\/li\u003e\n\u003cli data-section-id=\"y0qxzo\" data-start=\"14201\" data-end=\"14289\"\u003eHow water-conservation concepts may be demonstrated at home, school or community scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"14291\" data-end=\"14502\"\u003eThe model presents a simplified educational representation. A real rainwater-harvesting installation may also require filtration, first-flush arrangements, overflow control, structural planning and safe storage.\u003c\/p\u003e\n\u003chr data-start=\"14504\" data-end=\"14507\"\u003e\n\u003ch1 data-section-id=\"z0ux1z\" data-start=\"14509\" data-end=\"14535\"\u003eTest. Observe. Discover.\u003c\/h1\u003e\n\u003ch2 data-section-id=\"180tqxz\" data-start=\"14537\" data-end=\"14563\"\u003eWet and Dry Sensor Test\u003c\/h2\u003e\n\u003cp data-start=\"14565\" data-end=\"14602\"\u003eBegin with the sensor completely dry.\u003c\/p\u003e\n\u003cp data-start=\"14604\" data-end=\"14651\"\u003eApply a few water drops and observe the buzzer.\u003c\/p\u003e\n\u003cp data-start=\"14653\" data-end=\"14705\"\u003eWipe the plate completely dry and observe the reset.\u003c\/p\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"14707\" data-end=\"14946\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"14707\" data-end=\"14758\"\u003e\n\u003ctr data-start=\"14707\" data-end=\"14758\"\u003e\n\u003cth data-start=\"14707\" data-end=\"14724\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eTest condition\u003c\/th\u003e\n\u003cth data-start=\"14724\" data-end=\"14739\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSensor state\u003c\/th\u003e\n\u003cth data-start=\"14739\" data-end=\"14758\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eBuzzer response\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"14773\" data-end=\"14946\"\u003e\n\u003ctr data-start=\"14773\" data-end=\"14806\"\u003e\n\u003ctd data-start=\"14773\" data-end=\"14790\" data-col-size=\"sm\"\u003eBefore testing\u003c\/td\u003e\n\u003ctd data-start=\"14790\" data-end=\"14796\" data-col-size=\"sm\"\u003eDry\u003c\/td\u003e\n\u003ctd data-start=\"14796\" data-end=\"14806\" data-col-size=\"sm\"\u003eSilent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"14807\" data-end=\"14845\"\u003e\n\u003ctd data-start=\"14807\" data-end=\"14823\" data-col-size=\"sm\"\u003eWater applied\u003c\/td\u003e\n\u003ctd data-start=\"14823\" data-end=\"14829\" data-col-size=\"sm\"\u003eWet\u003c\/td\u003e\n\u003ctd data-start=\"14829\" data-end=\"14845\" data-col-size=\"sm\"\u003eAlert sounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"14846\" data-end=\"14899\"\u003e\n\u003ctd data-start=\"14846\" data-end=\"14869\" data-col-size=\"sm\"\u003eWater partly removed\u003c\/td\u003e\n\u003ctd data-start=\"14869\" data-end=\"14877\" data-col-size=\"sm\"\u003eMoist\u003c\/td\u003e\n\u003ctd data-start=\"14877\" data-end=\"14899\" data-col-size=\"sm\"\u003eAlert may continue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"14900\" data-end=\"14946\"\u003e\n\u003ctd data-start=\"14900\" data-end=\"14925\" data-col-size=\"sm\"\u003ePlate completely dried\u003c\/td\u003e\n\u003ctd data-start=\"14925\" data-end=\"14931\" data-col-size=\"sm\"\u003eDry\u003c\/td\u003e\n\u003ctd data-start=\"14931\" data-end=\"14946\" data-col-size=\"sm\"\u003eAlert stops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"8iuy8\" data-start=\"14948\" data-end=\"14970\"\u003eWater-Quantity Test\u003c\/h2\u003e\n\u003cp data-start=\"14972\" data-end=\"15038\"\u003eUse the dropper to apply different controlled quantities of water.\u003c\/p\u003e\n\u003cp data-start=\"15040\" data-end=\"15060\"\u003eStudents can record:\u003c\/p\u003e\n\u003cul data-start=\"15062\" data-end=\"15259\"\u003e\n\u003cli data-section-id=\"1cahsoo\" data-start=\"15062\" data-end=\"15079\"\u003eNumber of drops\u003c\/li\u003e\n\u003cli data-section-id=\"11e8u3h\" data-start=\"15080\" data-end=\"15110\"\u003eWhether the buzzer activated\u003c\/li\u003e\n\u003cli data-section-id=\"1ak5lsa\" data-start=\"15111\" data-end=\"15148\"\u003eWhether water reached the collector\u003c\/li\u003e\n\u003cli data-section-id=\"rx9rsl\" data-start=\"15149\" data-end=\"15188\"\u003eWhether it became visible in the pipe\u003c\/li\u003e\n\u003cli data-section-id=\"1fsq3wk\" data-start=\"15189\" data-end=\"15218\"\u003eWhether it entered the tank\u003c\/li\u003e\n\u003cli data-section-id=\"8sc3yj\" data-start=\"15219\" data-end=\"15259\"\u003eWhether any water remained on the roof\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1oayinp\" data-start=\"15261\" data-end=\"15285\"\u003eFlow-Path Observation\u003c\/h2\u003e\n\u003cp data-start=\"15287\" data-end=\"15336\"\u003eFollow one group of droplets through every stage:\u003c\/p\u003e\n\u003col data-start=\"15338\" data-end=\"15466\"\u003e\n\u003cli data-section-id=\"1n01etu\" data-start=\"15338\" data-end=\"15362\"\u003eSensor or roof area\u003c\/li\u003e\n\u003cli data-section-id=\"gdfhj8\" data-start=\"15363\" data-end=\"15382\"\u003eCollector tray\u003c\/li\u003e\n\u003cli data-section-id=\"vj2n5h\" data-start=\"15383\" data-end=\"15399\"\u003eTray outlet\u003c\/li\u003e\n\u003cli data-section-id=\"14sfizo\" data-start=\"15400\" data-end=\"15426\"\u003eTransparent hose pipe\u003c\/li\u003e\n\u003cli data-section-id=\"1hn180k\" data-start=\"15427\" data-end=\"15442\"\u003eTank inlet\u003c\/li\u003e\n\u003cli data-section-id=\"ekaswr\" data-start=\"15443\" data-end=\"15466\"\u003eModel storage tank\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"15468\" data-end=\"15541\"\u003eStudents can draw and label the complete pathway in their project report.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1u6u46i\" data-start=\"15543\" data-end=\"15563\"\u003eGravity-Flow Test\u003c\/h2\u003e\n\u003cp data-start=\"15565\" data-end=\"15646\"\u003eObserve how the height difference between the roof and tank helps move the water.\u003c\/p\u003e\n\u003cp data-start=\"15648\" data-end=\"15675\"\u003eDiscuss what may happen if:\u003c\/p\u003e\n\u003cul data-start=\"15677\" data-end=\"15808\"\u003e\n\u003cli data-section-id=\"wi8dvz\" data-start=\"15677\" data-end=\"15697\"\u003eThe pipe is raised\u003c\/li\u003e\n\u003cli data-section-id=\"zqvqaz\" data-start=\"15698\" data-end=\"15719\"\u003eThe pipe is twisted\u003c\/li\u003e\n\u003cli data-section-id=\"mf8q1b\" data-start=\"15720\" data-end=\"15741\"\u003eThe pipe is blocked\u003c\/li\u003e\n\u003cli data-section-id=\"rkiyda\" data-start=\"15742\" data-end=\"15771\"\u003eThe tank is placed too high\u003c\/li\u003e\n\u003cli data-section-id=\"1spkhvk\" data-start=\"15772\" data-end=\"15808\"\u003eThe collector outlet is misaligned\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1sczom\" data-start=\"15810\" data-end=\"15831\"\u003eRepeatability Test\u003c\/h2\u003e\n\u003cp data-start=\"15833\" data-end=\"15866\"\u003eDry and reset the complete model.\u003c\/p\u003e\n\u003cp data-start=\"15868\" data-end=\"15963\"\u003eRepeat the demonstration using approximately the same quantity of water and compare the result.\u003c\/p\u003e\n\u003ch2 data-section-id=\"5nph7v\" data-start=\"15965\" data-end=\"16001\"\u003eCollection-Efficiency Observation\u003c\/h2\u003e\n\u003cp data-start=\"16003\" data-end=\"16093\"\u003eApply a measured quantity of water and observe how much appears to reach the storage tank.\u003c\/p\u003e\n\u003cp data-start=\"16095\" data-end=\"16122\"\u003eDiscuss why some water may:\u003c\/p\u003e\n\u003cul data-start=\"16124\" data-end=\"16269\"\u003e\n\u003cli data-section-id=\"1rs9eu0\" data-start=\"16124\" data-end=\"16144\"\u003eRemain on the roof\u003c\/li\u003e\n\u003cli data-section-id=\"1r1dwhd\" data-start=\"16145\" data-end=\"16172\"\u003eStay inside the collector\u003c\/li\u003e\n\u003cli data-section-id=\"qamwft\" data-start=\"16173\" data-end=\"16193\"\u003eAdhere to the pipe\u003c\/li\u003e\n\u003cli data-section-id=\"1gefq9r\" data-start=\"16194\" data-end=\"16229\"\u003eEscape through a loose connection\u003c\/li\u003e\n\u003cli data-section-id=\"pv6exc\" data-start=\"16230\" data-end=\"16269\"\u003eRemain inside the tank after emptying\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"dyp82u\" data-start=\"16271\" data-end=\"16284\"\u003eReset Test\u003c\/h2\u003e\n\u003cp data-start=\"16286\" data-end=\"16360\"\u003eObserve how long the buzzer continues after most visible water is removed.\u003c\/p\u003e\n\u003cp data-start=\"16362\" data-end=\"16495\"\u003eA thin water film or residue across the sensor tracks may continue completing the electrical path until the plate is wiped fully dry.\u003c\/p\u003e\n\u003ch1 data-section-id=\"st14a9\" data-start=\"16502\" data-end=\"16537\"\u003eLearn Through Every Demonstration\u003c\/h1\u003e\n\u003ch3 data-section-id=\"74yqa7\" data-start=\"16539\" data-end=\"16548\"\u003eWatch\u003c\/h3\u003e\n\u003cp data-start=\"16550\" data-end=\"16598\"\u003eReview the video demonstration before beginning.\u003c\/p\u003e\n\u003ch3 data-section-id=\"y9l8or\" data-start=\"16600\" data-end=\"16611\"\u003ePredict\u003c\/h3\u003e\n\u003cp data-start=\"16613\" data-end=\"16675\"\u003eWhat will happen when the first water drop reaches the sensor?\u003c\/p\u003e\n\u003ch3 data-section-id=\"y9uabr\" data-start=\"16677\" data-end=\"16688\"\u003ePrepare\u003c\/h3\u003e\n\u003cp data-start=\"16690\" data-end=\"16756\"\u003eCheck the sensor, pipeline and tank before connecting the battery.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ynqv2o\" data-start=\"16758\" data-end=\"16766\"\u003eTest\u003c\/h3\u003e\n\u003cp data-start=\"16768\" data-end=\"16821\"\u003eApply a controlled amount of water using the dropper.\u003c\/p\u003e\n\u003ch3 data-section-id=\"sizzw\" data-start=\"16823\" data-end=\"16834\"\u003eObserve\u003c\/h3\u003e\n\u003cp data-start=\"16836\" data-end=\"16899\"\u003eListen to the buzzer and watch the water move through the pipe.\u003c\/p\u003e\n\u003ch3 data-section-id=\"pjpz2j\" data-start=\"16901\" data-end=\"16911\"\u003eRecord\u003c\/h3\u003e\n\u003cp data-start=\"16913\" data-end=\"16973\"\u003eDocument the amount of water used and the response observed.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ob2s0x\" data-start=\"16975\" data-end=\"16986\"\u003eCompare\u003c\/h3\u003e\n\u003cp data-start=\"16988\" data-end=\"17053\"\u003eRepeat the activity using a different quantity or flow condition.\u003c\/p\u003e\n\u003ch3 data-section-id=\"14mypyj\" data-start=\"17055\" data-end=\"17066\"\u003eAnalyse\u003c\/h3\u003e\n\u003cp data-start=\"17068\" data-end=\"17135\"\u003eExplain why the alarm activated and how the water reached the tank.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1bn6r32\" data-start=\"17137\" data-end=\"17153\"\u003eTroubleshoot\u003c\/h3\u003e\n\u003cp data-start=\"17155\" data-end=\"17242\"\u003eCheck the battery, sensor surface, collector outlet, pipe position and tank connection.\u003c\/p\u003e\n\u003ch3 data-section-id=\"16njeap\" data-start=\"17244\" data-end=\"17255\"\u003eExplain\u003c\/h3\u003e\n\u003cp data-start=\"17257\" data-end=\"17349\"\u003eDescribe the electronic rain alarm and physical harvesting process as two connected systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"gd19q8\" data-start=\"17351\" data-end=\"17361\"\u003eExtend\u003c\/h3\u003e\n\u003cp data-start=\"17363\" data-end=\"17465\"\u003eDevelop further questions about water storage, irrigation, filtration and smart-city water management.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1hhrn0b\" data-start=\"17472\" data-end=\"17494\"\u003eExplore Key Concepts\u003c\/h1\u003e\n\u003ch2 data-section-id=\"l7y2ym\" data-start=\"17496\" data-end=\"17513\"\u003eRain Detection\u003c\/h2\u003e\n\u003cul data-start=\"17515\" data-end=\"17621\"\u003e\n\u003cli data-section-id=\"u70l7c\" data-start=\"17515\" data-end=\"17535\"\u003eRain-sensor plates\u003c\/li\u003e\n\u003cli data-section-id=\"6y1c0i\" data-start=\"17536\" data-end=\"17553\"\u003eWater detection\u003c\/li\u003e\n\u003cli data-section-id=\"1045bey\" data-start=\"17554\" data-end=\"17578\"\u003eWet and dry conditions\u003c\/li\u003e\n\u003cli data-section-id=\"1l6lz6w\" data-start=\"17579\" data-end=\"17597\"\u003eAutomatic alerts\u003c\/li\u003e\n\u003cli data-section-id=\"1m8lv7f\" data-start=\"17598\" data-end=\"17621\"\u003eEnvironmental sensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1laqw8b\" data-start=\"17623\" data-end=\"17645\"\u003eElectrical Circuits\u003c\/h2\u003e\n\u003cul data-start=\"17647\" data-end=\"17788\"\u003e\n\u003cli data-section-id=\"1icpibg\" data-start=\"17647\" data-end=\"17662\"\u003eOpen circuits\u003c\/li\u003e\n\u003cli data-section-id=\"t1c8jp\" data-start=\"17663\" data-end=\"17683\"\u003eCompleted circuits\u003c\/li\u003e\n\u003cli data-section-id=\"f3evmn\" data-start=\"17684\" data-end=\"17711\"\u003eConductors and insulators\u003c\/li\u003e\n\u003cli data-section-id=\"78w739\" data-start=\"17712\" data-end=\"17735\"\u003eElectrical resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1drqp0h\" data-start=\"17736\" data-end=\"17762\"\u003eInput and output devices\u003c\/li\u003e\n\u003cli data-section-id=\"19usfz0\" data-start=\"17763\" data-end=\"17788\"\u003eActive-buzzer operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"8tq83o\" data-start=\"17790\" data-end=\"17806\"\u003eWater Science\u003c\/h2\u003e\n\u003cul data-start=\"17808\" data-end=\"17932\"\u003e\n\u003cli data-section-id=\"amp6bf\" data-start=\"17808\" data-end=\"17818\"\u003eRainfall\u003c\/li\u003e\n\u003cli data-section-id=\"xxh06z\" data-start=\"17819\" data-end=\"17835\"\u003eSurface runoff\u003c\/li\u003e\n\u003cli data-section-id=\"107oqag\" data-start=\"17836\" data-end=\"17855\"\u003eRooftop catchment\u003c\/li\u003e\n\u003cli data-section-id=\"1dj1fm3\" data-start=\"17856\" data-end=\"17874\"\u003eWater collection\u003c\/li\u003e\n\u003cli data-section-id=\"wka6zy\" data-start=\"17875\" data-end=\"17884\"\u003eGravity\u003c\/li\u003e\n\u003cli data-section-id=\"1j5wsu1\" data-start=\"17885\" data-end=\"17901\"\u003eFluid movement\u003c\/li\u003e\n\u003cli data-section-id=\"1yh2dms\" data-start=\"17902\" data-end=\"17917\"\u003eWater storage\u003c\/li\u003e\n\u003cli data-section-id=\"1vxejxh\" data-start=\"17918\" data-end=\"17932\"\u003eConservation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"13tw1yo\" data-start=\"17934\" data-end=\"17952\"\u003eSystem Thinking\u003c\/h2\u003e\n\u003cul data-start=\"17954\" data-end=\"18024\"\u003e\n\u003cli data-section-id=\"16tcxy6\" data-start=\"17954\" data-end=\"17961\"\u003eInput\u003c\/li\u003e\n\u003cli data-section-id=\"197uv47\" data-start=\"17962\" data-end=\"17973\"\u003eDetection\u003c\/li\u003e\n\u003cli data-section-id=\"16yot9i\" data-start=\"17974\" data-end=\"17981\"\u003eAlert\u003c\/li\u003e\n\u003cli data-section-id=\"d32m87\" data-start=\"17982\" data-end=\"17993\"\u003eCatchment\u003c\/li\u003e\n\u003cli data-section-id=\"gez021\" data-start=\"17994\" data-end=\"18006\"\u003eConveyance\u003c\/li\u003e\n\u003cli data-section-id=\"1p4gu1d\" data-start=\"18007\" data-end=\"18016\"\u003eStorage\u003c\/li\u003e\n\u003cli data-section-id=\"179grst\" data-start=\"18017\" data-end=\"18024\"\u003eReset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"bhz16e\" data-start=\"18026\" data-end=\"18052\"\u003ePractical Investigation\u003c\/h2\u003e\n\u003cul data-start=\"18054\" data-end=\"18183\"\u003e\n\u003cli data-section-id=\"gcqx08\" data-start=\"18054\" data-end=\"18078\"\u003eControlled application\u003c\/li\u003e\n\u003cli data-section-id=\"1at15ml\" data-start=\"18079\" data-end=\"18094\"\u003eRepeatability\u003c\/li\u003e\n\u003cli data-section-id=\"emq8pz\" data-start=\"18095\" data-end=\"18115\"\u003eObservation tables\u003c\/li\u003e\n\u003cli data-section-id=\"3w5wz4\" data-start=\"18116\" data-end=\"18144\"\u003eMeasurement and comparison\u003c\/li\u003e\n\u003cli data-section-id=\"183g7jc\" data-start=\"18145\" data-end=\"18165\"\u003eFlow-path analysis\u003c\/li\u003e\n\u003cli data-section-id=\"z1z1u8\" data-start=\"18166\" data-end=\"18183\"\u003eTroubleshooting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"1yowdg0\" data-start=\"18190\" data-end=\"18230\"\u003eOne Model. Multiple Learning Outcomes.\u003c\/h1\u003e\n\u003cp data-start=\"18232\" data-end=\"18273\"\u003eThe model allows students to explore how:\u003c\/p\u003e\n\u003cul data-start=\"18275\" data-end=\"18800\"\u003e\n\u003cli data-section-id=\"x8aghe\" data-start=\"18275\" data-end=\"18327\"\u003eWater changes the electrical condition of a sensor\u003c\/li\u003e\n\u003cli data-section-id=\"1uq0x9v\" data-start=\"18328\" data-end=\"18372\"\u003eConductive tracks can detect a wet surface\u003c\/li\u003e\n\u003cli data-section-id=\"n6c2cc\" data-start=\"18373\" data-end=\"18427\"\u003eAn electronic circuit can produce an automatic alert\u003c\/li\u003e\n\u003cli data-section-id=\"1e1n0ew\" data-start=\"18428\" data-end=\"18469\"\u003eA roof can function as a catchment area\u003c\/li\u003e\n\u003cli data-section-id=\"1bx5580\" data-start=\"18470\" data-end=\"18517\"\u003eRunoff can be collected instead of being lost\u003c\/li\u003e\n\u003cli data-section-id=\"1dvypc\" data-start=\"18518\" data-end=\"18557\"\u003eGravity can move water through a pipe\u003c\/li\u003e\n\u003cli data-section-id=\"46bw7m\" data-start=\"18558\" data-end=\"18615\"\u003eTransparent components make a process easier to observe\u003c\/li\u003e\n\u003cli data-section-id=\"i2sngg\" data-start=\"18616\" data-end=\"18662\"\u003eCollected water can be directed into storage\u003c\/li\u003e\n\u003cli data-section-id=\"13jvpdv\" data-start=\"18663\" data-end=\"18720\"\u003eElectronics and environmental systems can work together\u003c\/li\u003e\n\u003cli data-section-id=\"yj4tsn\" data-start=\"18721\" data-end=\"18800\"\u003eResponsible water management begins with understanding the complete flow path\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"1hdonrc\" data-start=\"18807\" data-end=\"18842\"\u003eBuilt for Confident Demonstration\u003c\/h1\u003e\n\u003cp data-start=\"18844\" data-end=\"18947\"\u003eThe visible water movement, audible response and guided learning resources make the model suitable for:\u003c\/p\u003e\n\u003cul data-start=\"18949\" data-end=\"19393\"\u003e\n\u003cli data-section-id=\"cas5ce\" data-start=\"18949\" data-end=\"18974\"\u003eSchool science projects\u003c\/li\u003e\n\u003cli data-section-id=\"kiq2zo\" data-start=\"18975\" data-end=\"18996\"\u003eScience exhibitions\u003c\/li\u003e\n\u003cli data-section-id=\"1e0u4lr\" data-start=\"18997\" data-end=\"19023\"\u003eClassroom demonstrations\u003c\/li\u003e\n\u003cli data-section-id=\"zkm0cu\" data-start=\"19024\" data-end=\"19060\"\u003eRainwater-harvesting presentations\u003c\/li\u003e\n\u003cli data-section-id=\"14gkifv\" data-start=\"19061\" data-end=\"19090\"\u003eWater-conservation projects\u003c\/li\u003e\n\u003cli data-section-id=\"ws4o2q\" data-start=\"19091\" data-end=\"19125\"\u003eEnvironmental-science activities\u003c\/li\u003e\n\u003cli data-section-id=\"xt95m9\" data-start=\"19126\" data-end=\"19154\"\u003eRain-sensor demonstrations\u003c\/li\u003e\n\u003cli data-section-id=\"1r8cg9r\" data-start=\"19155\" data-end=\"19191\"\u003eElectrical-conductivity activities\u003c\/li\u003e\n\u003cli data-section-id=\"z5fx6v\" data-start=\"19192\" data-end=\"19221\"\u003eGravity-flow demonstrations\u003c\/li\u003e\n\u003cli data-section-id=\"16ewa0d\" data-start=\"19222\" data-end=\"19256\"\u003eSustainable-building discussions\u003c\/li\u003e\n\u003cli data-section-id=\"1v9xwk3\" data-start=\"19257\" data-end=\"19272\"\u003eSTEM learning\u003c\/li\u003e\n\u003cli data-section-id=\"1nl6elw\" data-start=\"19273\" data-end=\"19296\"\u003eExperiential learning\u003c\/li\u003e\n\u003cli data-section-id=\"1o2e6vp\" data-start=\"19297\" data-end=\"19321\"\u003eProject-based learning\u003c\/li\u003e\n\u003cli data-section-id=\"4tplyf\" data-start=\"19322\" data-end=\"19350\"\u003eProject-report preparation\u003c\/li\u003e\n\u003cli data-section-id=\"1o8392l\" data-start=\"19351\" data-end=\"19379\"\u003eViva and oral presentation\u003c\/li\u003e\n\u003cli data-section-id=\"11hgo15\" data-start=\"19380\" data-end=\"19393\"\u003eGrades 7–12\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"14d3cd5\" data-start=\"19400\" data-end=\"19431\"\u003eSuggested Student Explanation\u003c\/h1\u003e\n\u003cblockquote data-start=\"19433\" data-end=\"20003\"\u003e\n\u003cp data-start=\"19435\" data-end=\"20003\"\u003e“This is a 2-in-1 rainwater-harvesting model and rain-alarm working project. When water reaches the conductive tracks on the rain sensor, it bridges the gap and changes the electrical condition of the circuit. This activates the buzzer and produces an audible rain alert. The water is also collected from the model roof, directed into the collector tray and carried through the transparent pipe by gravity. It then enters the model storage tank. The project demonstrates rain detection, electrical conductivity, gravity flow, rooftop catchment and water conservation.”\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch1 data-section-id=\"kts086\" data-start=\"20010\" data-end=\"20037\"\u003eBuild Upon the Foundation\u003c\/h1\u003e\n\u003cp data-start=\"20039\" data-end=\"20152\"\u003eOnce students understand the original detection and harvesting sequence, the model can inspire further questions:\u003c\/p\u003e\n\u003cul data-start=\"20154\" data-end=\"20742\"\u003e\n\u003cli data-section-id=\"5zqoo\" data-start=\"20154\" data-end=\"20197\"\u003eCould an LED provide a visual rain alert?\u003c\/li\u003e\n\u003cli data-section-id=\"19yoblj\" data-start=\"20198\" data-end=\"20246\"\u003eCould a switch be added to control the buzzer?\u003c\/li\u003e\n\u003cli data-section-id=\"1v22dlp\" data-start=\"20247\" data-end=\"20296\"\u003eCould the tank include a water-level indicator?\u003c\/li\u003e\n\u003cli data-section-id=\"iorbsx\" data-start=\"20297\" data-end=\"20335\"\u003eCould an overflow alert be explored?\u003c\/li\u003e\n\u003cli data-section-id=\"112zr2\" data-start=\"20336\" data-end=\"20374\"\u003eCould a filter layer be represented?\u003c\/li\u003e\n\u003cli data-section-id=\"rdt9kv\" data-start=\"20375\" data-end=\"20421\"\u003eCould a first-flush concept be demonstrated?\u003c\/li\u003e\n\u003cli data-section-id=\"1tdvfzu\" data-start=\"20422\" data-end=\"20481\"\u003eCould collected water be directed towards a model garden?\u003c\/li\u003e\n\u003cli data-section-id=\"1ov5srp\" data-start=\"20482\" data-end=\"20524\"\u003eCould different roof slopes be compared?\u003c\/li\u003e\n\u003cli data-section-id=\"goq4mn\" data-start=\"20525\" data-end=\"20575\"\u003eCould the volume of collected water be measured?\u003c\/li\u003e\n\u003cli data-section-id=\"1q8uck\" data-start=\"20576\" data-end=\"20619\"\u003eCould a second sensor detect a full tank?\u003c\/li\u003e\n\u003cli data-section-id=\"16kljds\" data-start=\"20620\" data-end=\"20669\"\u003eCould a microcontroller record rainfall events?\u003c\/li\u003e\n\u003cli data-section-id=\"dvmhbj\" data-start=\"20670\" data-end=\"20742\"\u003eCould the model be expanded into a community water-management display?\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"20744\" data-end=\"20861\"\u003eThese are further learning directions. Additional components, modifications and appropriate guidance may be required.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1sdrx7j\" data-start=\"20868\" data-end=\"20910\"\u003eThis Concept Can Also Be Used to Explore\u003c\/h1\u003e\n\u003cp data-start=\"20912\" data-end=\"20998\"\u003eThe model’s detection, collection and storage sequence can support discussions around:\u003c\/p\u003e\n\u003cul data-start=\"21000\" data-end=\"21502\"\u003e\n\u003cli data-section-id=\"154aumx\" data-start=\"21000\" data-end=\"21030\"\u003eRooftop rainwater harvesting\u003c\/li\u003e\n\u003cli data-section-id=\"kdxiic\" data-start=\"21031\" data-end=\"21061\"\u003eAutomatic rain-alert systems\u003c\/li\u003e\n\u003cli data-section-id=\"qozg1o\" data-start=\"21062\" data-end=\"21084\"\u003eWater-leak detection\u003c\/li\u003e\n\u003cli data-section-id=\"1m7xp4g\" data-start=\"21085\" data-end=\"21117\"\u003eTank-overflow warning concepts\u003c\/li\u003e\n\u003cli data-section-id=\"13xoj6v\" data-start=\"21118\" data-end=\"21145\"\u003eGravity-fed water systems\u003c\/li\u003e\n\u003cli data-section-id=\"174s0fe\" data-start=\"21146\" data-end=\"21183\"\u003eHousehold water-conservation models\u003c\/li\u003e\n\u003cli data-section-id=\"1e2lt6x\" data-start=\"21184\" data-end=\"21221\"\u003eSchool rainwater-harvesting systems\u003c\/li\u003e\n\u003cli data-section-id=\"ws83jq\" data-start=\"21222\" data-end=\"21269\"\u003eAgricultural catchment and irrigation storage\u003c\/li\u003e\n\u003cli data-section-id=\"1id2l65\" data-start=\"21270\" data-end=\"21308\"\u003eUrban stormwater-management concepts\u003c\/li\u003e\n\u003cli data-section-id=\"8l2d58\" data-start=\"21309\" data-end=\"21338\"\u003eSustainable-building design\u003c\/li\u003e\n\u003cli data-section-id=\"1v6m5b6\" data-start=\"21339\" data-end=\"21368\"\u003eSmart-city water monitoring\u003c\/li\u003e\n\u003cli data-section-id=\"siezwy\" data-start=\"21369\" data-end=\"21393\"\u003eFlood-warning concepts\u003c\/li\u003e\n\u003cli data-section-id=\"10e01ot\" data-start=\"21394\" data-end=\"21415\"\u003eWater-level sensing\u003c\/li\u003e\n\u003cli data-section-id=\"15vzzil\" data-start=\"21416\" data-end=\"21439\"\u003eRoof-slope comparison\u003c\/li\u003e\n\u003cli data-section-id=\"1feq9ic\" data-start=\"21440\" data-end=\"21471\"\u003eDrainage and pipeline systems\u003c\/li\u003e\n\u003cli data-section-id=\"1k5z7ks\" data-start=\"21472\" data-end=\"21502\"\u003eInput-process-output systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"21504\" data-end=\"21657\"\u003eThese are \u003cstrong data-start=\"21514\" data-end=\"21548\"\u003eeducational concept extensions\u003c\/strong\u003e based on the model’s working principles. They are not additional built-in functions of the supplied product.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1nv7sq5\" data-start=\"24083\" data-end=\"24123\"\u003eConcept and Sustainability Connections\u003c\/h1\u003e\n\u003cp data-start=\"24125\" data-end=\"24175\"\u003eThe model can support classroom discussion around:\u003c\/p\u003e\n\u003cul data-start=\"24177\" data-end=\"24419\"\u003e\n\u003cli data-section-id=\"b6k37o\" data-start=\"24177\" data-end=\"24194\"\u003eWater resources\u003c\/li\u003e\n\u003cli data-section-id=\"154aumx\" data-start=\"24195\" data-end=\"24225\"\u003eRooftop rainwater harvesting\u003c\/li\u003e\n\u003cli data-section-id=\"ki7l1v\" data-start=\"24226\" data-end=\"24242\"\u003eRain detection\u003c\/li\u003e\n\u003cli data-section-id=\"1y3t1d2\" data-start=\"24243\" data-end=\"24264\"\u003eElectrical circuits\u003c\/li\u003e\n\u003cli data-section-id=\"f3evmn\" data-start=\"24265\" data-end=\"24292\"\u003eConductors and insulators\u003c\/li\u003e\n\u003cli data-section-id=\"xyyixx\" data-start=\"24293\" data-end=\"24317\"\u003eGravity and fluid flow\u003c\/li\u003e\n\u003cli data-section-id=\"1yh2dms\" data-start=\"24318\" data-end=\"24333\"\u003eWater storage\u003c\/li\u003e\n\u003cli data-section-id=\"1i64fu1\" data-start=\"24334\" data-end=\"24359\"\u003eResponsible consumption\u003c\/li\u003e\n\u003cli data-section-id=\"1lryqy8\" data-start=\"24360\" data-end=\"24385\"\u003eSustainable communities\u003c\/li\u003e\n\u003cli data-section-id=\"1n2590s\" data-start=\"24386\" data-end=\"24419\"\u003eObservation and problem solving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"24421\" data-end=\"24761\"\u003eThe box independently maps the model to selected themes associated with water conservation, sustainable communities and responsible consumption. These are educational concept references only and do not imply approval, certification or endorsement by NCERT, CBSE, the United Nations or any school board.\u003c\/p\u003e\n\u003ch1 data-section-id=\"158v5je\" data-start=\"24768\" data-end=\"24797\"\u003eA Complete Learning Journey\u003c\/h1\u003e\n\u003ch2 data-section-id=\"4j6q80\" data-start=\"24799\" data-end=\"24818\"\u003eScan the code.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"1ns05dq\" data-start=\"24819\" data-end=\"24848\"\u003eWatch the demonstration.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"1sl89mi\" data-start=\"24849\" data-end=\"24870\"\u003eRead the manual.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"1kkyj0c\" data-start=\"24871\" data-end=\"24894\"\u003ePrepare the model.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"z7t2mr\" data-start=\"24895\" data-end=\"24916\"\u003eApply the water.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"enccpi\" data-start=\"24917\" data-end=\"24942\"\u003eHear the rain alert.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"dqzi1d\" data-start=\"24943\" data-end=\"24964\"\u003eFollow the flow.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"di1rty\" data-start=\"24965\" data-end=\"24993\"\u003eCollect it in the tank.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"cxp7xy\" data-start=\"24994\" data-end=\"25017\"\u003eRecord the result.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"4qcamo\" data-start=\"25018\" data-end=\"25039\"\u003eClean and reset.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"1ixk6pc\" data-start=\"25040\" data-end=\"25064\"\u003eExplain the system.\u003c\/h2\u003e\n\u003ch2 data-section-id=\"1e6rqbt\" data-start=\"25065\" data-end=\"25088\"\u003eBuild upon the idea.\u003c\/h2\u003e\n\u003cp data-start=\"25090\" data-end=\"25327\"\u003eThe \u003cstrong data-start=\"25094\" data-end=\"25148\"\u003eGo Science Rainwater Harvesting Model \u0026amp; Rain Alarm\u003c\/strong\u003e transforms water detection, electrical conductivity, gravity and conservation into a guided working experience students can observe, test, understand and confidently demonstrate.\u003c\/p\u003e\n\u003ch1 data-section-id=\"4evk91\" data-start=\"25334\" data-end=\"25379\"\u003eImportant Educational and Usage Information\u003c\/h1\u003e\n\u003cp data-start=\"25381\" data-end=\"25457\"\u003eThis product is an educational demonstration model and science teaching aid.\u003c\/p\u003e\n\u003cul data-start=\"25459\" data-end=\"26287\"\u003e\n\u003cli data-section-id=\"10qu1jp\" data-start=\"25459\" data-end=\"25505\"\u003eAdult or teacher supervision is recommended.\u003c\/li\u003e\n\u003cli data-section-id=\"bkmokq\" data-start=\"25506\" data-end=\"25549\"\u003eUse only small quantities of clean water.\u003c\/li\u003e\n\u003cli data-section-id=\"146qotw\" data-start=\"25550\" data-end=\"25591\"\u003eApply water using the supplied dropper.\u003c\/li\u003e\n\u003cli data-section-id=\"t4lw10\" data-start=\"25592\" data-end=\"25644\"\u003ePlace the model on a flat, stable and dry surface.\u003c\/li\u003e\n\u003cli data-section-id=\"1t7uu6b\" data-start=\"25645\" data-end=\"25725\"\u003eKeep water away from the battery terminals and exposed electrical connections.\u003c\/li\u003e\n\u003cli data-section-id=\"1e7elkl\" data-start=\"25726\" data-end=\"25776\"\u003eDo not pour, splash or flood the complete model.\u003c\/li\u003e\n\u003cli data-section-id=\"193vtll\" data-start=\"25777\" data-end=\"25830\"\u003eCheck battery polarity carefully before connection.\u003c\/li\u003e\n\u003cli data-section-id=\"bomjn1\" data-start=\"25831\" data-end=\"25870\"\u003eKeep each buzzer demonstration brief.\u003c\/li\u003e\n\u003cli data-section-id=\"rpavuh\" data-start=\"25871\" data-end=\"25925\"\u003eDisconnect the battery immediately after every test.\u003c\/li\u003e\n\u003cli data-section-id=\"18u73kq\" data-start=\"25926\" data-end=\"25975\"\u003eWipe the sensor plate completely dry after use.\u003c\/li\u003e\n\u003cli data-section-id=\"18fu5d8\" data-start=\"25976\" data-end=\"26007\"\u003eEmpty the model storage tank.\u003c\/li\u003e\n\u003cli data-section-id=\"1scsqfn\" data-start=\"26008\" data-end=\"26056\"\u003eDrain the transparent pipe and collector tray.\u003c\/li\u003e\n\u003cli data-section-id=\"3nwqqr\" data-start=\"26057\" data-end=\"26112\"\u003eNever store the kit while moisture remains inside it.\u003c\/li\u003e\n\u003cli data-section-id=\"bupwvs\" data-start=\"26113\" data-end=\"26165\"\u003eDo not store the model with the battery connected.\u003c\/li\u003e\n\u003cli data-section-id=\"vattu5\" data-start=\"26166\" data-end=\"26224\"\u003eStore in a cool, dry location away from direct sunlight.\u003c\/li\u003e\n\u003cli data-section-id=\"114txdz\" data-start=\"26225\" data-end=\"26287\"\u003eInternet access is required for the online manual and video.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"6f2uf4\" data-start=\"26289\" data-end=\"26320\"\u003eImportant Product Limitation\u003c\/h2\u003e\n\u003cp data-start=\"26322\" data-end=\"26427\"\u003eThis product demonstrates rain detection and rainwater-harvesting principles for educational observation.\u003c\/p\u003e\n\u003cp data-start=\"26429\" data-end=\"26439\"\u003eIt is not:\u003c\/p\u003e\n\u003cul data-start=\"26441\" data-end=\"26749\"\u003e\n\u003cli data-section-id=\"1iz3vc3\" data-start=\"26441\" data-end=\"26473\"\u003eA certified weather instrument\u003c\/li\u003e\n\u003cli data-section-id=\"16nzjdx\" data-start=\"26474\" data-end=\"26505\"\u003eA rainfall-measurement device\u003c\/li\u003e\n\u003cli data-section-id=\"1bkuzph\" data-start=\"26506\" data-end=\"26530\"\u003eA flood-warning system\u003c\/li\u003e\n\u003cli data-section-id=\"lkays3\" data-start=\"26531\" data-end=\"26556\"\u003eA plumbing installation\u003c\/li\u003e\n\u003cli data-section-id=\"1wg887g\" data-start=\"26557\" data-end=\"26584\"\u003eA water-filtration system\u003c\/li\u003e\n\u003cli data-section-id=\"1fw2uvt\" data-start=\"26585\" data-end=\"26619\"\u003eA drinking-water storage product\u003c\/li\u003e\n\u003cli data-section-id=\"jpxllo\" data-start=\"26620\" data-end=\"26653\"\u003eA certified tank-overflow alarm\u003c\/li\u003e\n\u003cli data-section-id=\"clai2i\" data-start=\"26654\" data-end=\"26705\"\u003eA real building rainwater-harvesting installation\u003c\/li\u003e\n\u003cli data-section-id=\"1rl9jo5\" data-start=\"26706\" data-end=\"26749\"\u003eA life-safety or emergency-warning device\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"26751\" data-end=\"26944\"\u003eThe model tank and collected demonstration water are not intended for drinking, household use or long-term storage.\u003c\/p\u003e\n\u003cp data-start=\"26751\" data-end=\"26944\"\u003e\u003cstrong data-start=\"29487\" data-end=\"29524\"\u003eReturn, Refund \u0026amp; Exchange Notice:\u003c\/strong\u003e This educational working model contains tested and sensitive electronic components together with a water-flow demonstration system. Kits that have been opened, powered, activated, tested, used, altered or exposed to water or unsuitable operating conditions are not eligible for return, refund or exchange . The required 9V battery is not included. Please review the product description, included contents, dimensions, power requirement, demonstration video and operating instructions carefully before purchase.\u003ccode\u003e\u003c\/code\u003e\u003c\/p\u003e\n\u003cp data-start=\"26751\" data-end=\"26944\"\u003e\u003ccode\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/code\u003e\u003c\/p\u003e","brand":"Go Science","offers":[{"title":"Default Title","offer_id":45648662233135,"sku":"2671814292803","price":649.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/4442\/3471\/files\/GO_Science_Classroom_Series_Rainwater_Harvesting_Model_Rain_Alarm_school_project_kit_retail_box_front.jpg?v=1784648985"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/4442\/3471\/collections\/GO_Science_Classroom_Series_Rainwater_Harvesting_Model_Rain_Alarm_school_project_kit_retail_box_front_c31b3549-e532-4456-8e64-9cc4f914767f.jpg?v=1787315578","url":"https:\/\/goscience.in\/collections\/rain-water-harvesting-school-project-chennai.oembed","provider":"Go Science","version":"1.0","type":"link"}