Matter Vocabulary

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Atom

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Tiny building blocks that make up everything around us.

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Atoms

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When something changes into a new substance, like when wood burns and turns to ash.

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Chemical change

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Substances made of two or more different atoms joined together, like water (H₂O).

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Compounds

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Pure substances made of only one kind of atom, like gold or oxygen.

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Elements

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A state of matter that spreads out and fills any space, like air.

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Gas

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gas

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A mix where you can see the different parts, like a salad.

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Heterogeneous mixtures

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A mix that looks the same all over, like lemonade.

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Homogeneous mixture

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Kinetic energy