Earth Science Name:

Review Sheet Ch. 24 Date:

1. Air must be saturated before clouds can form.

A. True

B. False

2. Glaze ice forms when rain freezes as it strikes the ground.

A. True

B. False

3. On average, the melting of 10 cm of snow will yield 1 cm of water.

A. True

B. False

4. Clouds require condensation nuclei in order to form.

A. True

B. False

5. Specific humidity compares the amount of water vapor present in the air to the amount it can hold at saturation.

A. True

B. False

6. Forceful lifting of an air mass can occur as the air meets a ______.

7. Precipitation increases after cloud seeding because clouds contain more ______.

8. Cloud seeding may eventually be used to control ______.

9. Which type of fog usually forms over inland rivers and lakes? ______

10. The collision and combination of large and small cloud droplets are described as ______.

11. Which type of cloud is composed entirely of ice crystals? ______

12. How much liquid water would most likely result from the melting of snow in the diagram?

______

13. Which type of precipitation is most likely to occur when a layer of warm air overlies a layer of air that is below the freezing point? ______

14. Precipitation consisting of drops smaller than 0.5 mm in diameter is called ______.

15. Ice changes directly into water vapor by the process of ______.

16. In which type of cloud is hail usually formed? ______

17. Which type of cloud usually forms in fair weather? ______

18. Most of the water in supercooled clouds exists as ______.

19. Frost forms by the process of ______.

20. The most common form of solid precipitation is ______.

21. Most water enters the atmosphere by the process of ______.

22. As air rises and expands, it undergoes ______.

23. What characteristic of the atmosphere changes as air temperature changes? ______

24. Rain in tropical regions is commonly formed by the process of ______.

25. Which type of fog occurs as warm moist air moves across a cold surface? ______

26. Which of the following cloud types occurs at the lowest altitude? ______

27. A funnel and a cylindrical container could be used to measure the ______.

28. What cloud type occurs at the highest altitude? ______

29. What is the relative humidity when there are 5 g/m3 of water vapor in air with a saturation point of 25 g/m3 ? ______

30. A psychrometer is used to measure ______.

31. The mass of water vapor in a sample of air compared to the mass of water vapor the air can hold at saturation is called the ______.

32. What is another name for cumulonimbus clouds? ______

33. What instrument package is carried in a balloon to high altitudes in order to measure temperature and humidity? ______

34. The instrument that uses wet-bulb and dry-bulb thermometers to measure relative humidity is called a(n) ______.

35. The condensation level is marked by the base of the ______.

36. What forms on surfaces when the dew point is below the freezing temperature of water? ______

37. By the process of sublimation, ice changes into ______.

38. The principal source of atmospheric moisture is ______.

Matching

A. / advection fog
B. / cirrus cloud
C. / cloud seeding
D. / coalascence
E. / condensation nuclei
F. / convective cooling
G. / cumulus cloud
H. / dew point
I. / frost
J. / hail
K. / humidity
L. / saturated
M. / stratus cloud
N. / sublimation
O. / sleet

____ 39. cloud that is sheet-like and forms lowest in the sky

____ 40. adding freezing nuclei to super cooled clouds to increase precipitation

____ 41. amount of water vapor in the air

____ 42. feathery clouds made of ice crystals

____ 43. air contains all the water vapor it can hold at that temperature

____ 44. ice crystals formed when water directly enters the solid state

____ 45. ice pellets formed when rain falls through a layer of freezing air

____ 46. combining different sized cloud droplets to form larger droplets

____ 47. solid changes directly into a solid

____ 48. condensation from the cooling of warm, moist air moving across a cool surface

____ 49. thick, billowy cloud that forms in the middle atitudes

____ 50. lumps of ice

____ 51. decrease in temperature of air resulting as the air rises and cools

____ 52. solid particles in the atmosphere on which water vapor condenses

____ 53. temperature air is cooled and becomes saturated

Test Ch. 24

Answer Section

TRUE/FALSE

1. ANS: T PTS: 1 DIF: A: Standard

2. ANS: T PTS: 1 DIF: A: Standard

3. ANS: T PTS: 1 DIF: A: Standard

4. ANS: T PTS: 1 DIF: A: Standard

5. ANS: F PTS: 1 DIF: A: Standard

MULTIPLE CHOICE

6. ANS: B PTS: 1 DIF: A: Standard

7. ANS: D PTS: 1 DIF: B: Enriched

8. ANS: C PTS: 1 DIF: A: Standard

9. ANS: B PTS: 1 DIF: A: Standard

10. ANS: B PTS: 1 DIF: A: Standard

11. ANS: C PTS: 1 DIF: A: Standard

12. ANS: B PTS: 1 DIF: B: Enriched

13. ANS: B PTS: 1 DIF: A: Standard

14. ANS: A PTS: 1 DIF: B: Enriched

15. ANS: B PTS: 1 DIF: A: Standard

16. ANS: A PTS: 1 DIF: B: Enriched

17. ANS: B PTS: 1 DIF: A: Standard

18. ANS: B PTS: 1 DIF: B: Enriched

19. ANS: B PTS: 1 DIF: A: Standard

20. ANS: D PTS: 1 DIF: A: Standard

21. ANS: A PTS: 1 DIF: A: Standard

22. ANS: D PTS: 1 DIF: A: Standard

23. ANS: B PTS: 1 DIF: B: Enriched

24. ANS: D PTS: 1 DIF: A: Standard

25. ANS: C PTS: 1 DIF: A: Standard

26. ANS: C PTS: 1 DIF: A: Standard

27. ANS: A PTS: 1 DIF: A: Standard

28. ANS: C PTS: 1 DIF: A: Standard

29. ANS: C PTS: 1 DIF: B: Enriched

30. ANS: D PTS: 1 DIF: A: Standard

31. ANS: B PTS: 1 DIF: A: Standard

COMPLETION

32. ANS: thunderheads

PTS: 1 DIF: A: Standard

33. ANS: radiosonde

PTS: 1 DIF: B: Enriched

34. ANS: psychrometer

PTS: 1 DIF: A: Standard

35. ANS: cloud layer

PTS: 1 DIF: A: Standard

36. ANS: frost

PTS: 1 DIF: A: Standard

37. ANS: water vapor

PTS: 1 DIF: A: Standard

38. ANS: ocean water

PTS: 1 DIF: A: Standard

MATCHING

39. ANS: M PTS: 1

40. ANS: C PTS: 1

41. ANS: K PTS: 1

42. ANS: B PTS: 1

43. ANS: L PTS: 1

44. ANS: I PTS: 1

45. ANS: O PTS: 1

46. ANS: D PTS: 1

47. ANS: N PTS: 1

48. ANS: A PTS: 1

49. ANS: G PTS: 1

50. ANS: J PTS: 1

51. ANS: F PTS: 1

52. ANS: E PTS: 1

53. ANS: H PTS: 1