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25 Cards in this Set
- Front
- Back
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Cycles-Matter moves among the ___________ and ____________
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Environment & Living Things
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What cycle moves water from the ocean, atmosphere, land, and living things.
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The Water Cycle
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What percent of precipitation falls into the ocean?
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91% and the rest falls on land renewing the supply of fresh water.
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What is evaporation?
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The sun's heat causes water to change from liquid to vapor.
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What is condensation?
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The process of water cooling forming vapor that can fall to the earth as precipitation.
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What is ground water?
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Water under the ground that is stored in underground caverns or in porous rocks.
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What % of the body is composed of water?
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70%
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The process of water returning to the atmosphere is called what?
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Evaporation
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Carbon is the part of what molecules?
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Biological Molecules...which means anything living or that once lived contains carbon.
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What process is when the plants take sunlight to make energy?
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Photosynthesis
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Plants use CO2 from the air to make what?
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Sugars
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Do animals need carbon?
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Yes/True
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Most animals get there carbon by eating what?
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Plants
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During what process are sugar molecules broken down to release energy?
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Respiration
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Carbon returns the environment/atmosphere by _____ and animals?
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Plants
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CO2 and H2O are released as what?
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Byproducts
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What is the breakdown of materials into CO2 and H2O?
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Decomposition
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Fungi and what decompose organic matter and return carbon to the environment?
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Bacteria
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Burning of coal, oil, and Natural Gas. This returns carbon to the what as carbon dioxide?
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Atmosphere
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What percent is the atmosphere made up of nitrogen gas?
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78%
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What can be found in soil that is able to change nitrogen gas into forms that can be used by plants?
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Bacteria
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Most animals get there nitrogen they need by eating what?
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Plants
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What break (organisms) down dead organisms and wastes?
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Bacteria
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This process is when plans export a gas. What is the gas called?
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Nitrogen Gas
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During nitrogen fixation, the gas is converted so whats can use it?
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Plants
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