water pollution working model making using cardboard and dc motor diy howtofunda

Making Rainwater harvesting working model, in this course helps students understand the importance of conserving water through a simple and practical project. In this course, learners will build a working model that demonstrates how rainwater can be collected, filtered, stored, and reused for different purposes like irrigation, cleaning, or even basic household needs. Using materials such as bottles, pipes, funnels, filters, and storage containers, students will design a mini system that shows the process of directing rainwater from rooftops into storage tanks. Step by step, the course explains the concept of rainwater harvesting, its benefits in reducing water scarcity, and its role in sustainable development. Students will also explore how filtration removes impurities and how storage ensures water availability during dry seasons. This project connects science with environmental awareness, encouraging learners to think of innovative solutions to real-world problems. Ideal for school science fairs, classroom demonstrations, or eco-friendly awareness campaigns, the course makes learning engaging and meaningful. By the end, participants will have a functional model that shows how rainwater harvesting conserves resources and supports sustainable living. howtofunda