1. What happens to water vapour as it rises higher in the atmosphere?
2. What is precipitation with respect to the water cycle?
3. What are the three states of water?
4. What is the process of changing ice into water called?
5. What happens to the water level when ice melts?
6. What is condensation?
7. Which process converts water into water vapour?
8. What are the tiny droplets that form on the outer surface of a cold glass called?
9. What is the main source of water on Earth?
10. How do clouds form?