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Unit 2 Weather And Climate
Test Description: Unit 2 Earth Science 7th Grade
Instructions: Answer all questions to get your test result.
1) About 70% of the surface of our planet is covered by water. Of all the water on Earth, the oceans make up about ______________ %.
A
77%
B
87%
C
67%
D
97%
2) Why can't we drink salt water from the ocean?
A
it will give you diarrhea
B
it will give you an upset stomach
C
it will give you stomach cancer
D
it will cause dehydration
3) Most photosynthetic activity happens in what layer of the ocean?sunlight
A
twilight
B
midnight
C
abyassal
D
sunlight
4) What do ocean currents move around the Earth that affects climate and weather around the globe?
A
oxygen
B
thermal energy
C
water
D
fish and other animals
5) A large volume of water flowing in a specific direction is called (n) _______________.
A
Lake
B
Gyre
C
Ocean Current
D
Water Cycle
6) The vertical movement of deep water toward the Earth's surface is called ____________.Upwelling
A
upwelling
B
density currents
C
gyres
D
surface currents
7) The vertical movement of surface water to deeper parts of the ocean is called _______________. up
A
surface currents
B
gyres
C
density currents
D
upwelling
8) ____________ currents are caused by changes in temperature and salinity of water.
A
upwelling currents
B
surface currents
C
global currents
D
density currents
9) Which of the following is not a characteristic of the deeper layers of our ocean?
A
extreme pressure
B
near freezing temperatures
C
very little visible sunlight
D
3/4 of the ocean floor exist here
10) The transformation of water vapor to liquid is called __________.
A
condensation
B
evaporation
C
sublimation
D
precipitation
11) Our global winds are affected by the rotation of the Earth on its axis. What is this called?
A
coriolis effect
B
global warming
C
climate change
D
trade winds
12) The passage of water from a plant to the atmosphere represents what process?
A
transportation
B
evaporation
C
transpiration
D
precipitation
13) What type of ocean currents are driven by global winds?
A
global currents
B
surface currents
C
wind currents
D
density currents
14) Density currents are caused by changes in the temperature and ____________ of water.
A
nutrients
B
salinity
C
oxygen
D
heat
15) What do ocean currents move around the earth that has a large effect on climate?
A
thermal energy
B
plant and animal life
C
small islands
D
salt
16) When 2 distinct air masses converge, they form boundaries called ___________.
A
maritime air masses
B
low-pressure systems
C
fronts
D
convergent boundaries
17) Weather maps can show lines that connect places with similar characteristics. Which lines represent areas of equal temperatures?
A
doppler radar
B
infrared images
C
isobars
D
isotherms
18) If you walk outside and there are no clouds, no rain, and just a pretty day, what type of pressure system is most likely covering the area where you are?
A
cold front
B
occluded front
C
stationary front
D
warm front
19) A ______________ front forms when a cold mass meets a warm but neither have enough force to move the other ass but neither h
A
low pressure system
B
high pressure system
C
cold front
D
warm front
20) Where do maritime air masses originate from?
A
over land
B
over atmosphere
C
over globe
D
over water
*select an answer for all questions
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