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RISD Science 4th 9 weeks

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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vocabulary word
definition
conservation   the careful management and wise use of natural resources  
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photosynthesis   the process by which a plant makes its own food  
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precipitation   water that falls to Earth as rain, snow, sleet, or hail  
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carbon cycle   the cycle by which carbon dioxide returns to the air through photosynthesis, decomposition, and respiration  
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water cycle   the constant recycling of water on Earth  
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condensation   the process by which water vapor changes from a gas to a liquid  
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barometer   an instrument that measures air pressure  
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system   a group of parts that work together as a unit  
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Created by: sgrubb
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