Chemical/Physical Changes & Properties

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What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing the substance's chemical identity.

Tags

NGSS.MS-PS1-4

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, indicating how a substance interacts with other substances.

Tags

NGSS.MS-PS1-2

Front

What is a physical change?

Back

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

Front

What is a chemical change?

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A chemical change is a change that results in the formation of new chemical substances, indicating that a chemical reaction has occurred.

Tags

NGSS.MS-PS1-2

Front

Give an example of a physical change.

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Crumbling paper is an example of a physical change.

Front

Give an example of a chemical change.

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Digesting food is an example of a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is melting ice a physical or chemical change?

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Melting ice is a physical change.

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Is burning wood a physical or chemical change?

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Burning wood is a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What happens to the chemical composition of a substance during a physical change?

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The chemical composition of a substance remains the same during a physical change.

Front

What happens to the chemical composition of a substance during a chemical change?

Back

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

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5