In this video, you will learn how to make a working rainwater harvesting and irrigation model at home easily This model simulates a real rainwater harvesting system and shows how it can be useful to harvest rainwater
This video shows you how to make a working windmill from cardboard, and yes, it actually spins when the wind blows at it. It is also very easy to make Measurements: □ Strips for blades = 1cm × 6.2cm □ Base = 3.7cm ×2cm □Standing piece = 12.6cm × 2cm