Matter Concepts

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Atomic Number

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The number of protons in the nucleus of an atom. It tells you what element it is.

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Atoms

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The tiny building blocks that make up all matter.

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Boiling Point

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The temperature at which a liquid turns into a gas.

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Chemical Change

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A change that forms a new substance with different properties.

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Chemical Property

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A characteristic that describes how a substance can change into a new substance.

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Chemical Reaction

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A process where one or more substances change into new substances.

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Compound

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A substance made of two or more different elements that are chemically combined.

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Combustibility

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The ability of a substance to catch fire and burn.

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Density

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How much mass is in a certain volume of a substance (how tightly packed the particles are).

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Electron

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A tiny particle with a negative charge that moves around the nucleus of an atom.