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25 Cards in this Set

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