Physical and Chemical Changes

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?

Back

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

NGSS.MS-PS1-5

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Tags

NGSS.MS-PS1-4

Front

Give an example of a chemical change.

Back

Mixing baking soda and vinegar is an example of a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What indicates a chemical change has occurred?

Back

The production of a new substance during a reaction indicates a chemical change.

Tags

NGSS.MS-PS1-2

Front

Is adding sugar to coffee a physical or chemical change?

Back

Adding sugar to coffee is a physical change.

Front

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

Back

The properties of a substance may change, but its chemical identity remains the same during a physical change.

Front

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

Back

The properties of a substance change, and a new substance is formed during a chemical change.

Tags

NGSS.MS-PS1-2

Front

What is rusting an example of?

Back

Rusting is an example of a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What are some signs that a chemical change has occurred?

Back

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

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5