Science Vocabulary Flashcards

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Matter

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Substance that has mass and takes up space (volume).

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Physical property

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A characteristic of a substance that can be observed or measured without changing its identity (composition).

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Chemical property

Back

A characteristic that can only be observed during a chemical reaction (substance changes composition).

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Atom

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The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.

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Element

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A pure substance that cannot be broken down into simpler substances.

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Molecule

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Two or more atoms bonded together.

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Compound

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A substance formed when two or more elements are chemically bonded.

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Mixture

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A combination of two or more substances that are not chemically bonded.

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Distillation

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A process used to separate mixtures based on differences in boiling points.

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Evaporation

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The process of turning from liquid into vapor.