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Matter:�Solid�Liquid�Gas

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1. Everything in the universe is either matter or energy.

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2. Anything that you can (could) touch is made of atoms.�This is matter.

Everything else is energy.

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3. Matter exists in four states: solid, liquid, gas, and plasma.

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4. Solids have a definite shape and volume of their own.

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5. 2 types of solids:�crystalline [atoms in a regular pattern] and�amorphous [atoms NOT in a pattern].�

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6. Liquids have a definite volume, but their shape can change.

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7. Volume = length x width x height

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1. Gases change both shape and volume.

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2. Pressure: The force exerted on an area. e.g. Inflated balloon: The internal pressure pushes the sides outward.

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