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D - Science - Unit 7

Weather Practice Test - Part 2

Air can become saturated when water vapor is added to the air through _______. evaporation & transpiration
For _______ to occur it must have a surface to condense on. condensation
Puffy, white clouds that tend to have flat bottoms are called _______. cumulus clouds
Clouds that form in layers are called _______. stratus clouds
Thin, feathery, white clouds found at high altitudes are called _______. cirrus clouds
The most common form of precipitation is liquid water that falls from the clouds to Earth. This type of precipitation is called _______. rain
_______ the most common form of solid precipitation, forms when temperatures are so cold that water vapor changes directly to a solid. snow
A _______ air mass is a wet air mass that forms over water. maritime (m)
A _______ air mass is a dry air mass that forms over land. continental (c)
A _______ air mass is a cold air mass that forms over the polar regions. polar (P)
A _______ air mass is a warm air mass that develops over the Tropics. tropical (T)
A _______ air mass forms over the North Pacific Ocean and affects the Pacific Coast. maritime polar (mP)
A _______ air mass develops over warm areas in the Gulf of Mexico and the North Atlantic Ocean and move across the East Coast and into the Midwest. maritime tropical (mT)
A _______ air mass forms over the deserts of northern Mexico and in the southwestern United States. It influences weather in the United States only during the summer as it moves northeastward, bringing clear, dry, and very hot weather. continental tropical (cT)
A _______ occurs when a cold air mass meets and displaces a warm air mass. cold front
A _______ occurs when a warm air mass meets and overrides a cold air mass. warm front
An _______ occurs when a faster-moving cold air mass overtakes a slower-moving warm air mass and forces the warm air up. occluded front
Cooler weather usually follows a _______ front because the warm air is pushed away from the Earth's surface. cold
_______ usually bring drizzly precipitation. Afterward, weather conditions are clear and warm. warm fronts
An _______ has cool temperatures and large amounts of precipitation. occluded front
The weather associated with a _______ is similar to that produced by a warm front. stationary front
Which device is used to measure air temperature? thermometer
Which device is used to measure air pressure? barometer
Which device is used to measure wind speed? anemometer
Which device is used to measure wind direction? windsock or wind vane
When -nimbus or nimbo- is part of a cloud's name, it means that _______. precipitation might fall from the cloud
When strato- is part of a cloud's name, it means that _______. it is a low cloud
Suppose that 1m3 of air at a certain temperature can hold 10g of water vapor. However, you know that the air actually contains 9g of water vapor. What is the relative humidity? 90 percent
Created by: lprinke