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4th Grade Weather unit cards
4th Grade Weather unit cards
13
Science
4th Grade
02/14/2007

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Term
Air Pressure
Definition
The wieght of air as it pushes down.
Term
Greenhouse Effect
Definition
THe greenhouse effect is the process by which heat from the sun builds up near Earth's surface and is trapped by the atmosphere.
Term
Weather
Definition
The condition of the Earth's atmosphere at a certain place and time.
Term
Condensation
Definition
Condensation is the change of state from a gas to a luquid.
Term
Evaporation
Definition
Evaporation is the change of state from a luquid to a gas.
Term
Precipation
Definition
Is any form of water that falls from the clouds to Earth's atmosphere.
Term
Water Cycle
Definition
Is the movement of water into air as water vapor and bck a to the Earth's surface as precipation.
Term
Air Mass
Definition
Is a large body of air that has about the same temperture and moisture throghout.
Term
Front
Definition
THe place where the to air masses meet is called the front.
Term
Climate
Definition
The avarge weather conditions is an area over a long period of time.
Term
Polar Climate
Definition
Polar climate has very cold weather all year.
Term
Temperate climate
Definition
Usally has warm dry summers and cold wet winters.
Term
Tropical climate
Definition
A Tropical climate is hot and sometimes rainy.
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