1. Standard 4: The Hydrosphere The Water Cycle
4-1 Study Notes
Standard 4: The Hydrosphere
The Water Cycle

2. 1. ­­­­­­­­­­­­­­­­­­­­­_________ is used to describe a place where water is found water in Earth systems.
Reservoir

3. 2. The final step before water is acceptable for ________ consumption is _________ or UV light disinfectant.
human
chlorine

4. 3. When water ______ (gas) changes to a liquid it is called _____________.
vapor
condensation

5. 4. Water is cleaned in nature through the water _______.
cycle

6. 5. A raindrop striking Earth’s surface will sink into the soil when there is _______ between ______ particles
space
soil

7. 6. Water exists when it is in the air in all ______ forms; as a solid, liquid and ____.  
three
gas

8. 7. Plants contribute to the water cycle by storing water and releasing it through ____________.
transpiration

9. 8. Water must be ______ for people to drink because dirty water can make people sick or kill them.  
clean

10. 9. The change of ______ water to water vapor (gas) is called ____________.
liquid
evaporation

11. 10. A molecule of water spends the _______ amount of time in the __________.
MOST
ground

12. pores
11. The process of water seeping into ______ in the ground is __________.  
infiltration

13. glacier
12. Water in a _______ can be expected to stay in the glacier for _______ years.  
1,000

14. LEAST
13. A molecule of water would spend the ______ amount of time in ______ things.
living

15. 14. Well water from deep underground is sometimes ______ enough for drinking because it has been ________ through layers of rock.
clean
filtered

16. 15. The _____ moves water by ____________ water into the air.
sun
evaporating
15. The _____ moves water by ____________ water into the air.

17. 16. _____ of water is in the oceans. Only about 3% is ______ water.
97%
fresh

18. 17. _____________ spends a long time in the ground because groundwater does ____ evaporate.
not

19. 18. The ____ is the main source of the energy required to change water from a liquid to _____ phase.
sun
gas

20. 19. Water in a wave in the Pacific Ocean arrives in _____ a week later because ___ currents carried it.
Utah
air

21. 20. A _________ is a place where large amounts of water are _______.
reservoir
stored
Manmade reservoirs
Lakes
Oceans
Glaciers

22. clean
21. Surface water can look ______ but contain harmful ________ so thirsty hikers should ____ drink from a stream.
bacteria
not
Brain eating bacteria

23. 22. A process that removes salt from water is ____________.
desalination

24. The End