Introduction
Definitions
1. Freshwater- 6. Groundwater-
2. Surface water- 7. Permeable-
3. Runoff- 8. Impermeable-
4. River system- 9. Aquifer-
5. Watershed- 10. Water Table-
11. Recharge zone- 12. Well-
Task
Fill in the blank
1. Fresh water is a renewable ____________.
2. Another name for the water cycle is the ___________.
3. About 97.5% of Earth's water is _______________.
4. ______________ is water that is relatively pure, with few dissolved salts.
5. More than three quarters of the fresh water is on Earth is _____________ , the rest is liquid
6. Fresh water is distributed ______________ in both time in space
Process
Short Answer
1 Explain why liquid fresh water is considered a limited resource. 2. Explain why the available amount of water per person differs between countries.
3. What is a recharge zone? 4. What happens when the water table drops below the depth of a well?
Evaluation
Multiple choice
1. Water that flows over land and has not been absorbed into the ground is called
A. runoff
B. ocean water
C. groundwater
D. a tributary
2. All of the land area that supplies water to a particular river system is called a
A. glacier
B. river
C. watershed
D. tributary