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First 9 Weeks Review

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
Water Cycle   model to describe how water moves from the Earth's surface to atmosphere and back to the surface again through evaporation, condensation, and precipitation.  
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Evaporation   water changes from a liquid to a gas  
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Condensation   gas changes back to a liquid  
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Precipitation   droplets that fall from from the clouds to ground as rain, snow, and sleet, etc.  
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Nitrogen Cycle   Model describing how Nitrogen moves from the atmosphere to the soil, to living organism, then back to the atmosphere. The nitrogen cannot be used in the free form as a gas.  
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plants   Bacteria in the soil is fixed so that some _______ can use the Nitrogen. Animals eat the _________ and get Nitrogen.  
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soil   Waste from animals returns Nitrogen to the ________. When animals and plants die decomposers return the Nitrogen to the ______ for plants.  
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Nitrogen   _____________ is changed into usable compounds from lighting. Plants and animals use _________ to build cells. Human DNA contains _________.  
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Carbon Cycle   Model describing how Carbon molecules move between the living and nonliving world.  
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photosynthesis   The carbon cycle begins when (plants) remove Carbon Dioxide during photosynthesis and give off oxygen as a product.  
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respiration   During ____________ animals take in Oxygen and give off Carbon Dioxide.  
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