Chemical vs Physical Changes

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What is a physical change?

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

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What is a chemical change?

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A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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Give an example of a physical change.

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An example of a physical change is the melting of ice into water.

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NGSS.MS-PS1-4

Front

Give an example of a chemical change.

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An example of a chemical change is the rusting of iron.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What happens to the chemical composition during a physical change?

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The chemical composition remains the same during a physical change.

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What happens to the chemical composition during a chemical change?

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The chemical composition changes during a chemical change, resulting in new substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What is an indicator of a chemical change?

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Indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.

Tags

NGSS.MS-PS1-2

Front

What is an indicator of a physical change?

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Indicators of a physical change include changes in state (solid, liquid, gas), shape, or size without a change in chemical composition.

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Is boiling water a physical or chemical change?

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Boiling water is a physical change because it changes from liquid to gas without altering its chemical composition.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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Is burning wood a physical or chemical change?

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Burning wood is a chemical change because it produces new substances such as ash and smoke.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5