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7th Grade Science Common Exam Review
Test Description: Part 3
Instructions: Answer all questions to get your test result.
1) Why does air pressure decrease from the troposphere to the exosphere?
A
because there are lower temperatures as altitude increases
B
because there are more air molecules as altitude increases
C
because there are higher temperatures as altitude increases
D
because there are fewer air molecules as altitude increases
2) What occurs within a high pressure system?
A
calm weather, as air sinks
B
large clouds as air rises
C
the formation of hurricanes
D
the formation of tornadoes
3) The temperature of City X has decreased by 20 degrees and clouds have formed causing rain and thunderstorms. What has most likely occurred in City X?
A
a blizzard has taken place
B
a high pressure system has stalled
C
a warm front has passed
D
a cold front has passed
4) How does the convection of air produce thunderstorms?
A
by causing both warm air and cold air to rise
B
by causing warm air to sink and cold air to rise
C
by causing cold air to sink and warm air to rise
D
by causing both warm air and cold air to sink
5) Which best explains how the Coriolis effect influences weather conditions?
A
it causes winds to rotate, forming tornadoes on Earth
B
it causes winds to follow a straight line path around Earth
C
it causes winds to rotate to the right in the Southern Hemisphere
D
it causes winds to rotate to the right in the Northern Hemisphere
6) Why does a sea breeze blow from the ocean towards the shore?
A
Air over land heats faster than air over water, which causes convection
B
the tide carries the wind to the shore as it moves back and forth
C
High pressure over land causes a downdraft to occur
D
Conduction of heat from the warm water produces wind from the ocean
7) How does the temperature of the stratosphere compare to the mesosphere?
A
It is warmer than the mesosphere because the stratosphere contains the ozone layer.
B
It is colder than the mesosphere because the stratosphere contains the ionosphere.
C
It is warmer than the mesosphere because the stratosphere contains the ionosphere.
D
It is colder than the mesosphere because the stratosphere contains the ozone layer.
8) At which of the following temperatures could air hold the greatest amount of water vapor?
A
59
B
72
C
64
D
63
9) Which term is given to describe the lines joining places that have the same temperature on a weather map?
A
fronts
B
isotherms
C
isobars
D
occluded
10) A rapidly moving cold air mass meets a slowly moving warm air mass and forms a front. What will most likely occur at this front?
A
the warm air will slide under the cold air. The cold air will rise and get warmer
B
cold air will slide under the warm air. warm air will rise and cool. clouds will form
C
the less dense warm air will sink and cool. clouds will form
D
the two air masses will mix together
*select an answer for all questions
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