Physical and Chemical Properties and Changes

Front

What is a chemical change?

Back

A process where one or more substances are transformed into new substances with different properties.

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What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is an example of a physical change?

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Ice melting into water.

Front

What is an example of a chemical change?

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Rust forming on iron.

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What indicates a chemical change has occurred?

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The formation of a new substance.

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What is density?

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A physical property that measures how much mass is contained in a given volume.

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What is a clue that a physical change has occurred?

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Change in size, shape, or state of matter.

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What happens during a chemical change?

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Bonds between atoms are broken and new bonds are formed, resulting in new substances.

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What is a physical property?

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A characteristic of a substance that can be observed or measured without changing its identity.

Front

What is a chemical property?

Back

A characteristic that can only be observed during a chemical reaction.