1. Earth Science Topic #7 Review Game1 7 13 19 25 2 8 14 20 26 3 9 15 21 27 4 10 16 22 28 5 11 17 23 29 6 12 18 24 30

2. 200 pts! A weather instrument is shown below.
Which weather variable is measured by this instrument?
a. wind speed
b. precipitation
c. cloud cover
d. air pressure

3. In the diagram below, arrows represent air movement near an ocean coastline on a summer afternoon.
Compared to the air over the ocean, the air over the land has a
a. lower temperature and lower barometric pressure
b. lower temperature and higher barometric pressure
c. higher temperature and lower barometric pressure
d. higher temperature and higher barometric pressure
400 pts!

4. 500 pts! The air over the Equator generally rises because the air is
a. dry and cool with low density
b. moist and hot with low density
c. moist and cool with high density
d. dry and hot with high density
500 pts!

5. The diagram below represents the wet-bulb and dry-bulb temperatures on a sling psychrometer
400 pts!
What was the relative humidity of the air when these temperatures were recorded?
a. 5%
b. 17%
c. 20%
d. 63%
300 pts!

6. Which cross section below best shows the locations of high air pressure and low air pressure near a beach on a hot, sunny, summer afternoon?
300 pts! A C B D

7. Which statement best explains how atmospheric dust particles influence the water cycle?
a. Dust particles are the main source of dissolved salts in the sea.
b. Dust particles increase the capacity of the atmosphere to hold water vapor.
c. Dust particles increase the amount of evaporation that takes place.
d. Dust particles provide surfaces on which water vapor can condense.
500 pts!

8. 300 pts! The properties of an air mass are mostly determined by the
a. rate of Earth’s rotation
b. direction of Earth’s surface winds
c. source region where the air mass formed
d. path the air mass follows along a land surface
300 pts!

9. The weather map below shows a portion of a low-pressure system.
Which front will most likely pass over location A during the next two hours'?
a. warm
b. stationary
c. occluded
d. cold
250 pts!

10. The map below shows a low-pressure system located over an area in the south-central United States.
200 pts!
In the next few days, because of the prevailing winds, the air mass will probably move toward the
a. southeast
b. northeast
c. southwest
d. northwest

11. The map below shows surface air temperatures, in degrees Fahrenheit, reported by weather stations in the north-central United States. Letter X represents an air mass moving in the direction shown by the arrow. A line marks a frontal boundary advancing in a southeasterly direction.
Which weather-map symbols best represent air-mass X and the frontal boundary shown on the map?
300 pts! D A B C

12. An air mass that originates over the northern Pacific Ocean and moves southward over the United States would most likely be labeled on a weather map as
a. mP
b. mT
c. cP
d. cT
300 pts!

13. Base your answer on the weather map of North America below
Base your answer on the weather map of North America below. The map shows the location of a front and the air mass influencing its movement.
The cP air mass is identified on the basis of its temperature and
a. wind direction
b. cloud cover
c. moisture content
d. windspeed
200 pts!

14. Which station model represents an atmospheric pressure of 1,009
Which station model represents an atmospheric pressure of 1,009.2 millibars and a temperature of 75°F?
250 pts! A C B D

15. In which direction do the surface winds blow around a high-pressure system in the Northern Hemisphere?
a. clockwise and inward
b. clockwise and outward
c. counterclockwise and inward
d. counterclockwise and outward
500 pts!

16. Base your answer on the weather map below, which shows a low-pressure system over the central United States. Isobars are labeled in millibars. Points A, B, C, and D represent locations on Earth's surface.
150 pts!
Which location is most likely experiencing the fastest wind speed?
a.  A
b.  B
c.  C
d.  D

17. The table below shows air temperatures and dew point temperatures at different elevations above sea level.
200 pts!
Clouds that form at an elevation of 3 kilometers will most likely be composed of
a. raindrops
b. ozone
c. ice crystals
d. sleet

18. What is the relative humidity when the dry-bulb temperature is 16°C and the wet-bulb temperature is 14°C?
a.  90%
b.  80%
c.  14%
d.  13%
250 pts!

19. Which natural event directly results in the periodic cleaning of the atmosphere?
a. volcanic eruptions
b. transpiration
c. radiation
d. precipitation
250 pts!

20. The graph below shows air temperature for an area near the Earth's surface during a 12-hour period.
Which graph best illustrates the probable change in air pressure during the same time period?
150 pts! A C B D

21. Which map best represents the surface wind pattern around a Northern Hemisphere high-pressure center? C A
250 pts! B D

22. Which graph best shows the general relationship between altitude and temperature in the troposphere?
500 pts! A C B D

23. 400 pts! An air temperature of 30°C is equal to a. –22°F b. –2°F
c. 74°F
d. 86°F
400 pts!

24. Great volcanic eruptions send dust and ash into the stratosphere
Great volcanic eruptions send dust and ash into the stratosphere. Weeks after such great eruptions, air temperatures are often
a. cooler than normal because the atmosphere is less transparent
b. cooler than normal because the atmosphere is more transparent
c. warmer than normal because the atmosphere is less transparent
d. warmer than normal because the atmosphere is more transparent
300 pts!

25. Which station model correctly represents the weather conditions in an area that is experiencing winds from the northeast at 25 knots and has had a steady drop in barometric pressure of 2.7 millibars during the last three hours? A C
450 pts! B D

26. 300 pts!
Which statement best explains why the position of the polar front jet stream varies with the seasons?
a. Rising air compresses and cools in winter.
b. Water heats and cools more rapidly than land in winter.
c. Prevailing winds reverse direction in summer.
d. The vertical rays of the Sun shift north of the equator in summer.

27. Which map best represents the surface wind pattern associated with high-pressure and low-pressure systems in the Northern Hemisphere? A C B D
400 pts!

28. The graph below shows the air temperature and dewpoint temperature at one location at four different times during one morning.
250 pts!
At what time was the chance of precipitation the greatest?
a. 1 a.m.
b. 5 a.m.
c. 3 a.m.
d. 7 a.m.

29. Which weather variable can be determined by using a psychrometer?
a. barometric pressure
b. cloud cover
c. relative humidity
d. wind speed
200 pts!

30. Which weather station model for a New York State location indicates that snow may be about to fall?
350 pts!

31. Which weather station model shows the highest relative humidity?
300 pts! B D