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Science Test 3

Weather Conditions

What is the air that surrounds our planet? atmosphere
What are air particles pressing down on a surface? air pressure
What layer of the atmosphere is closest to Earth? troposphere
What is the second layer of the atmosphere that is JUST above the weather? stratosphere
What is the greenhouse effect? Heat from the sun is trapped in the atmosphere to warm Earth.
What is an air mass? A large body of air that has moisture and temperature similar to the place over which it formed.
What is formed when two air masses meet? front
What is an instrument that measures air pressure? barometer
What instrument measures humidity? hygrometer
What is the amount of water vapor in the air? humidity
Which clouds are thin, wispy, and located at high altitudes? cirrus
Which clouds are dark, towering, and bring heavy rain? cumulonimbus
Which clouds are thick, gray, and near Earth's surface? stratus
Which clouds are puffy, white, and at middle altitudes? cumulus
What are the FOUR layers that make up our atmosphere? thermosphere, stratosphere, mesosphere, troposphere
What two properties describe air masses? temperature and moisture
Most weather occurs in this layer of the atmosphere. troposphere
Does warm air have high pressure or low pressure? low pressure
The cloud type that usually brings heavy rain is called _____. cumulonimbus
Where is air pressure highest? near Earth's surface
What happens along fronts? weather
Does cold air have high pressure or low pressure? high pressure
Created by: MissMeyer
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