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13 Cards in this Set
- Front
- Back
What kind of clouds are low, flat, and sometimes cover the sky like a blanket. Cause rain and snow.
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Stratus clouds
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What kind of clouds form as warm, moist air moves high into the sky?Seen during fair weather
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Cumulus clouds
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What clouds form high in the sky in cold temperatures and are made of ice crystals? They move quickly and indicate warm air is on way
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Cirrus clouds
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Does cold air hold more or less water vapor than warm air?
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Less
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How does water move through the water cycle?
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Water evapor. into the air. Vapor condenses and forms tiny drops. Clouds are formed and get heavy cause water to fall as rain.
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What are the three steps in the water cycle?
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Evaporation
Condensation Precipitation |
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What causes weather to change?
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Moving air masses
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What causes air masses to move?
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Differences in air pressure and wind
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How do air masses usually move in the USA?
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West to east
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What happens when there is a cold front?
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Warm air rises and cools quickly causing huge storm clouds. Cold fronts move quickly so storm is brief.
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What happens when there is a warm front?
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Warm air slides slowly over cold air mass causing cirrus clouds, followed by lower thick clouds. Rain may last several days
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What tools do weather stations use?
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satellites, weather balloons
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How do weather forcasts help people stay safe?
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Allow people to prepare for changing weather conditions.
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