1. About what percent of the Earth’s water is fresh water?
2. About what percent of all of Earth’s water is found in groundwater, streams, lakes, and rivers?
3. Explain the following statement: The water on other planets is present in a different form than on Earth.
4. What powers the water cycle?
5. In what state would water be found at 130 C? What state would water be at -45 C?
6. Define the words condensation and evaporation.
7. Summarize the water cycle.