Chemical Reactions

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Tiny pieces of matter that everything is made of

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atoms

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An object, diagram, or computer program that helps us understand something by making it simpler or easier to see

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model

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Something that can be observed about a substance, such as color, smell, or boiling point

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property

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A process in which atoms rearrange to form new substances.

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chemical reaction

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Something that is made of all the same atoms or groups of atoms

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substance

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A group of atoms joined together in a particular way

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molecule

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In a chemical equation, are the reactants the beginning substances or the ending substances?

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beginning

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In a chemical equation, are the products the beginning substances or the ending substances?

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ending

Front

During a chemical reaction, atoms can

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be rearranged to form a new substance

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Burning paper is an example of a

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chemical reaction