Front

What is a physical change?

Back

A physical change is a change in which some physical properties of a substance change, but the substance retains its identity.

Tags

NGSS.MS-PS1-4

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, altering the identity of the original substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a physical change.

Back

An example of a physical change is when a piece of paper is ripped into smaller pieces.

Front

Give an example of a chemical change.

Back

An example of a chemical change is burning wood, which produces ash and smoke.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What happens to the identity of a substance during a physical change?

Back

The identity of the substance remains the same during a physical change.

Front

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

Back

The identity of the substance changes during a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is evidence of a physical change?

Back

Evidence of a physical change includes changes in shape, size, or state of matter without altering the substance's identity.

Tags

NGSS.MS-PS1-4

Front

What is evidence of a chemical change?

Back

Evidence of a chemical change includes the production of gas, color change, temperature change, or formation of a precipitate.

Tags

NGSS.MS-PS1-2

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance's identity, while chemical properties can only be observed during a chemical change.

Front

What is an example of a physical property?

Back

An example of a physical property is color, shape, or boiling point.