2. Created by Terri Street Copyright, 2000

3.  1,000,0001,000,000  500,000500,000  250,000250,000  125,000125,000  64,00064,000  32,00032,000  16,00016,000  8,0008,000  4,0004,000  2,0002,000  1,0001,000  500500  300300  200200  100100

4. Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer.

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7.  A. 3% A. 3%  C. 25% C. 25%  B. 50% B. 50%  D. 85% D. 85% What percentage of Earth’s water is freshwater?

8. Back to Board  A. 3%

9.  A. precipitation A. precipitation  C. evaporation C. evaporation  B. condensation B. condensation  D. infiltration D. infiltration What part of the water cycle requires direct input of solar energy?

10. Back to Board C. evaporation

11.  A. salt water A. salt water  C. minerals C. minerals  B. freshwater B. freshwater  D. magma D. magma For what is the Ogallala Aquifer a source?

12. Back to Board B. freshwater

13.  A. erosion from land A. erosion from land  C. rainwater C. rainwater  B. sea organisms B. sea organisms  D. groundwater D. groundwater Why is the sea salty?

14. Back to Board A. Erosion from Earth’s crust

15.  A. flooding A. flooding  C. condensation C. condensation  B. evaporation B. evaporation  D. groundwater D. groundwater Rivers collect water from run off and what else?

16. Back to Board D. Groundwater

17.  A. abyssal plain A. abyssal plain  C. continental shelf C. continental shelf  B. midocean ridge B. midocean ridge  D. coast D. coast You wade into the ocean. Where can you stand so you might be able to keep your head above water?

18. Back to Board C. Continental shelf

19.  A. a dam A. a dam  C. a shed on the banks C. a shed on the banks of the Yuba River  B. Streams that flow into B. Streams that flow into the Yuba River  D. the banks D. the banks A community organization forms to protect the Yuba River Watershed. What is the Yuba River Watershed?

20. Back to Board B. Area of land that features streams that flow into the Yuba River

21.  A. darker, warmer, A. darker, warmer, More organisms  C. darker, colder, C. darker, colder, Higher pressure, Fewer organisms  B. doesn’t change in B. doesn’t change in in a pattern  D. darker, warmer, D. darker, warmer, Lower pressure, More organisms How does the ocean change with increasing depth?

22. Back to Board C. It gets darker, colder, pressure increases and it contains fewer organisms.

23.  A. biosphere A. biosphere  D. deep groundwater D. deep groundwater In what reservoir does water reside for the longest time?  C. ocean C. ocean  B. glaciers B. glaciers

24. Back to Board D. Deep groundwater

25. What else is an “ice sheet” known as?  A. alpine glacier A. alpine glacier  C. frozen lake C. frozen lake  D. polar continent D. polar continent  B. continental glacier B. continental glacier

26. Back to Board B. Continental glacier

27.  A. polar ice caps and A. polar ice caps and glaciers Where is most of Earth’s freshwater?  C. groundwater C. groundwater  B. rivers, lakes, B. rivers, lakes, streams  D. atmosphere D. atmosphere

28. Back to Board A. Polar ice caps and glaciers

29.  B. delta B. delta What landform is the build up of sediment that is deposited as a stream meets the sea?  A. ox bow lake A. ox bow lake  C. moraine C. moraine  D. meander D. meander

30. Back to Board B. Delta

31.  C. Pluck rocks, carry C. Pluck rocks, carry and deposit them How do glaciers reshape the Earth’s surface?  A. move plate A. move plate tectonics  B. move slowly B. move slowly  D. contain water D. contain water

32. Back to Board C. Pluck rocks out of the ground, carry them away and deposit them.

33.  D. small D. small What size sediment can slowly moving water carry?  A. large A. large  C. none C. none  B. large and small B. large and small

34. Back to Board D. small

35.  A. as it slows, large A. as it slows, large sediment is deposited Why do you typically find bigger rocks along the banks of a fast-moving stream and smaller rocks beside a slower-moving stream?  B. as it slows, small B. as it slows, small sediment is deposited  D. slow carries D. slow carries dissolved sediment only  C. fast carries large C. fast carries large sediment only

36. A. As a stream slows, it deposits its larger sediments first

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