Matter: Essential and Support Terms

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Matter

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Anything that has mass and takes up space.

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Element

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A pure substance made of one kind of atom.

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Compound

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A pure substance of two or more elements chemically bonded.

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Mixture

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Physical blend of substances; uniform vs. non-uniform.

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Homogeneous Mixture

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A mixture that looks the same throughout.

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Heterogeneous Mixture

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A mixture that has two or more visually different parts.

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Physical Change

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Changes in form/appearance vs. changes that make new substances.

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Physical Property

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Property that is not changed when observed with your five senses.

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Chemical Change

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Atoms have been rearranged, creating new products, chemical reactions.

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Chemical Property

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A property that possibly changes the chemical identity of the substance.