vocab of 2.1-2.3
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| atom | smallest particle of an element
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| element | substance that can not be broken down into simpler substances
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| pure substances | a substance that always has the same composition
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| compound | substance that is made from 2 or more simpler substances. can be broken down.
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| solution | a mixture that when dissolved is a homogeneous mixture. (salt water, windshield wiper fluid.)
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| suspension | heterogeneous mixture that separates into layers over time. (muddy river, salad dressing)
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| physical properties | can be observed when the substances in a material stay the same
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| viscosity | the resistance a material has to flow
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| Conductivity | is a material’s ability for allowing heat or electricity to flow through it
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| physical change | occurs when some of the properties of a material change but the substances in the material remain the same.
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| chemical property | can only be observed when the substances in a sample are changing
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| precipitate | any solid that forms and separates from a liquid mixture
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Created by:
canny caileen
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