Let’s experiment. Create a functional water cycle. Make predictions and observations about evaporation, condensation, precipitation and runoff to see how the water cycle works first hand.
Earth has a limited supply of water that is cycled over and over again. The water cycle is an important process on earth because living things, including animals and humans, need water to grow and survive. Water is used for drinking, growing food, providing habitat, generating electricity and more. The sun has been driving the water cycle on Earth for billions of years. The four main stages of the water cycle are evaporation, condensation, precipitation and runoff.