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Definitions (277)
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atmosphere
The layers of gases that surround Earth or another planet.
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cementation
Process by which sedimentary rock is formed from sediments being glued together by mineral deposits.
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comet
Small frozen masses of ice, dust, and gases that travel a definite path through the solar system.
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inherit
To receive a characteristic (genes) from an ancestor.
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science state curriculum glossary
Abiotic: Nonliving features of an ecosystem such as climate, light, soil chemistry, and water availability.
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abyssal plain
Flat areas on the ocean floor formed by the deposition of sediment.
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acceleration
The change that occurs in an object's speed or direction in a certain period of time.
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acid
A substance that donates hydrogen ions. Any compound that produces hydrogen ions (H+) in water thereby reducing the pH of water to a value below 7.
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adaptation
A characteristic, arising from natural selection, that that improves a population's chance of survival and reproduction.
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amplitude
The distance from the midpoint to the maximum point (crest) or to the minimum point (trough) of a wave. The distance that a wave rises and falls from its normal rest position.
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