Term
| What happens to air when it is heated? |
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Definition
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Term
| What happens to air when it is cooled? |
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Definition
| Air contracts when cooled. |
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Term
| Are there any exceptions to this practice? |
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Definition
Yes.Water contracts when heated and expands when cooled. An example of this is in boiling water (turning to steam) and water frezzing in ice trays. |
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Term
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Definition
| Air pushes on the earths surface. This is known as air pressure. |
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Term
| Does air everywhere have the same pressure? |
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Definition
| No. Faster moving air has less pressure than slower moving air. Also, air pressure decreases as the altitude increases. |
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Term
| What is Bernouli's Principle? |
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Definition
| This principle states that slower moving air has greater pressure on an object than faster moving air. This principle helps to explain why airplanes or kites stay in the sky. |
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