Test your knowledge of the water cycle with this quiz.
1. What is the first step in the water cycle?
2. What form of water is found in clouds?
3. Where does precipitation fall back to?
4. Which of these is NOT an effect of human activity on the water cycle?
5. What state does water vapor turn into when it cools?
6. How does water move from the atmosphere back to the earth's surface?
7. What happens when clouds become heavy with water droplets?