Unit 6 Water and the Sun’s Energy Study Guide

1. Dew is formed by condensation.

2. Which contains the greatest amount of Earth’s liquid freshwater? Groundwater

3. Which two physical changes are essential processes in the water cycle? Evaporation and condensation

4. Which of the following processes is part of the water cycle? Condensation

5. Which factor is MOST important in determining how much groundwater can be stored in underground rock? The rock’s porosity

6. How does nonpoint-source pollution reach bodies of water? By runoff

7. Water on Earth is found naturally as a solid, a liquid, and a gas. Where is MOST of the solid water on Earth? In Earth’s Polar Regions

8. What is the upper boundary of the zone of saturation called? Water table

9. Drip irrigation delivers water directly to what? The roots of crops

10. What drains a watershed? A water system

11. The high points that divide watersheds are called divides.

12. What source of energy drives the water cycle? The sun

13. Rocks in an aquifer that let water flow through them are permeable.

14. Water can be stored or accumulated in all of the following EXCEPT parking lots and slopes.

15. What is evaporation? The process in which liquid water is turned to water vapor.

16. What makes water evaporate? Water vapor heating up (gaining energy)

17. Which of the following processes is NOT involved in the water cycle? Subduction

18. What is accumulation? The collection of water in streams, lakes, and oceans.

19. What is precipitation? The process in which liquid or solid water is returned from clouds to the

ground.

20. What makes water vapor condense? Water vapor cooling down (losing energy)

21. Which of the following is a form of point source pollution? Chemicals from factories

22. What are some ways we can conserve water?

By turning off water while we brush our teeth.

By taking a short shower instead of a bath.

By fixing all water leaks.

23. What is a large slow moving river of ice that carves out U shaped valleys? Glacier

24. Water that is found in underground aquifers is called groundwater .

25. Which of the following is NOT a solid form of precipitation? Rain