1. Chapter 9 Review game
Chapter review
Packet

2. Which factors effect runoff?
Slope
Vegetation
Rate of precipitation
Composition of Soil

3. What areas are likely to contain fertile soil? Flood Plains

4. What common mineral is often carried in stream solution? Calcite

5. What material plays a major role in eutrophication of lakes?
Phosphates

6. What happens to the amount of oxygen present in a lake during the process of eutrophication?
It decreases

7. What kind of streams form V shaped valleys?
Streams that are first forming (youthful)

8. Where does water move the fastest in a stream? In the center

9. If there is a bend in the stream, where is the water moving the fastest?
Outside curve

10. Which particles are dropped off first, as a stream begins to slow down?
The largest ones.

11. Where do Alluvial fans form? Along the bases of mountains.

12. In what ways are a delta and Alluvial fan similar?
Triangle shaped deposits

13. In what ways are a delta and Alluvial fan different?
Delta wet environment at mouth, fan in dry environment at base of mountain.

14. Define Runoff

15. Define Watershed

16. What is the largest watershed in North American? Mississippi

17. When water in a stream dissolves minerals, it is called a ??? solution

18. Define Bed load

19. Define Discharge

20. What is the formula for discharge?
Discharge = width x depth x velocity

21. True or False?
Soil with vegetation allows more water to enter the ground than soil with out vegetation.
True

22. True or False?
Light precipitation is more likely to end up as runoff than heavy rain.
False

23. True or False?
The slope of the land has little influence as to the amount of runoff in an area
False

24. True or False? A streams slope effects it carrying capacity true

25. True or False?
Humus creates soil space which in turn allows more water to be held
true

26. True or False? Gentle slopes have more runoff than steep slopes false

27. True or False?
Carrying capacity of a stream increases as the slope and discharge increase
true

28. The amount of dissolved materials in a stream is expressed in ___________
Parts per million or ppm

29. How are particles such as silt, clay and sand carried in a stream?
suspension

30. The carrying capacity of a stream depends on what?
Velocity of water
amount of water

31. Pot holes in a stream are caused by… Swirling pebbles

32. True or false All streams flow into the ocean False

33. How deep will a stream down cut? Till it reaches its base level.

34. What is a delta? Triangle shaped deposit at mouth of river

35. What is a delta? Triangle shaped deposit at mouth of river

36. What is rejuvenation of a stream and how does it occur?
Stream actively resumes down cutting towards its base level. When land stream is on up lifts, or the end of the stream lowers.

37. Define Headward erosion

38. Define stream piracy

39. What are alluvial fans composed of? Sand and gravel

40. What happens to a streams velocity as a delta develops? It slows down

41. Define swamp
low lying areas often located near streams that develop from filled in marshes

42. Define wetland
A periodically saturated area that develops after a lake fills in with vegetation.

43. Define Lake
A depression in the landscape that collects and holds water.

44. Define Oxbow lake
A type of lake that forms when a meander gets cut off

45. Define Eutrophication
The successional process that begins with the addition of nutrients and continues with the filling in of a lake.

46. What is the dominate bedrock in areas where lakes form. Limestone

47. True or false Eutrophiation is a way in which lakes can form false

48. A lake created by people in order to store water is called a ____________ .
Reservoir

49. What determines if a lake can form in an area? Surface materials

50. When did most of NY state lakes form? During the last ice age

51. True or false Deposition contributes to a water supply False

52. True or false
Lakes fill in and cease to exist after hundreds of Thousands of years for small, millions for larger lakes.
True.