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This set correlates with 4th grade science.

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
atmosphere   The layer of gasses that surrounds the Earth that supports life.  
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troposphere   The layer of the atmosphere that is closest to the Earth’s surface, where weather takes place, water vapor is present, and humans live.  
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nitrogen   The atmosphere is composed of around 78% of this gas.  
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oxygen   The atmosphere is composed of around 21% of this gas.  
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other gasses   The atmosphere is composed of around 1% of these gasses.  
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water vapor and carbon dioxide   Gasses that make up about 1% of the atmosphere.  
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Created by: jbrink
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