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| A state of matter that has a definite volume and a definite shape. |
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| Why does a solid have a definite shape? |
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| Because the particles in a solid are pack tightly together and stay in fixed positions, a solid has a definite shape and volume. |
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| A substance that is made of of crystals in which particles are arranged in a regular repeating pattern. |
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| A solid made up of particles that are not arranged in a regular pattern. |
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