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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?

Back

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

Front

Give an example of a physical change.

Back

Sharpening a pencil is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning wood is an example of 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?

Back

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

Tags

NGSS.MS-PS1-4

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

Front

Is dissolving Gatorade powder in water a physical or chemical change?

Back

Dissolving Gatorade powder in water is a physical change.

Front

What is an indicator of a chemical change?

Back

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

Tags

NGSS.MS-PS1-2

Front

Is milk going sour a physical or chemical change?

Back

Milk going sour is a chemical change.

Tags

NGSS.MS-PS1-5

Front

What is an example of a chemical change that produces gas?

Back

Exploding fireworks is an example of a chemical change that produces gas.

Tags

NGSS.MS-PS1-2