Chemical & Physical Changes

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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 a characteristic of all chemical changes?

Back

New substance is formed.

Front

What happens during rusting?

Back

Iron reacts with oxygen and moisture to form iron oxide, a new substance.

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What are chemical properties?

Back

Properties that can only be observed when a substance undergoes a chemical change.

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What is an example of a physical change?

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Melting ice into water.

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What is an example of a chemical change?

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Burning wood.

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What is corrosion?

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The gradual destruction of materials, often metals, due to chemical reactions with their environment.

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What is the difference between a chemical change and a physical change?

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A chemical change results in the formation of new substances, while a physical change does not.

Front

What is an example of a substance undergoing a chemical change?

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Mold growing on cheese.