Physical and Chemical Changes Review

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. Examples include changes in state, shape, or size.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a chemical reaction and the breaking and forming of bonds.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a physical change.

Back

Hammering wood together to build a playhouse is an example of a physical change.

Front

Give an example of a chemical change.

Back

Bleaching your hair is an example of a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What happens during a chemical change?

Back

During a chemical change, the original substances are transformed into different substances with new chemical properties.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the boiling point?

Back

The boiling point is the temperature at which a liquid turns into a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is an example of a change that occurs at the boiling point?

Back

When water reaches its boiling point, it can become steam (gas).

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NGSS.MS-PS1-4

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Front

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

Back

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

Tags

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Front

What is an example of a physical change involving temperature?

Back

Melting ice cream is an example of a physical change that involves temperature.

Tags

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Front

What are some indicators 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