Georgia Science Grade 6

Chapter 16: Weather

CRCT Practice

1
Hurricane Mitch, with winds of 313 km/h and a pressure of 907 mb, struck the east coast of Central America in 1998.The table lists hurricane categories. What category was Hurricane Mitch?
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A)2
B)3
C)4
D)5
2
Which of the following is true when categorizing a hurricane?
A)Storm category increases as wind increases and pressure decreases.
B)Storm category increases as wind decreases and pressure increases.
C)Storm category increases as wind and pressure increase.
D)Storm category decreases as wind and pressure decrease.
3
Which of the following instruments is used to measure air pressure?
A)anemometer
B)thermometer
C)barometer
D)rain gauge
4
Which of the following terms is used to describe a person studies the weather?
A)meteorologist
B)geologist
C)biologist
D)paleontologist
5
What is the atmospheric pressure in the city of Madison,Wisconsin?
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A)1024 mb
B)1016 mb
C)1008 mb
D)1000 mb
6
What is the largest amount of water vapor that can be in air at a temperature of 45°C?
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A)65g/m3
B)70g/m3
C)60g/m3
D)50g/m3
7
Which of the following is a description of a tornado?
A)a large, swirling, low-pressure system that forms over the warm Atlantic Ocean
B)a winter storm with winds at least 56 km/h and low visibility
C)a violently rotating column of air in contact with the ground
D)a boundary between two air masses of different density, moisture, or temperature
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