Changes in Matter

Front

What type of change occurs when liquid water boils and becomes water vapor?

Back

Physical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What type of change occurs when cooking food?

Back

Chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Front

What does the presence of bubbles often indicate in a chemical reaction?

Back

The release of a gas.

Tags

NGSS.MS-PS1-2

Front

What type of change begins with one kind of matter and ends with another?

Back

Chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is the statement true or false? A balloon that is inflated and then deflates is an example of a physical change that can easily be reversed.

Back

True.

Front

Define a physical change in matter.

Back

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

Front

Define a chemical change in matter.

Back

A chemical change is a change that results in the formation of new chemical substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is an example of a physical change that can be reversed?

Back

Melting ice and then refreezing it.

Tags

NGSS.MS-PS1-4

Front

What is an example of a chemical change?

Back

Burning wood.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

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

Back

A physical change does not change the substance's chemical identity, while a chemical change does.

Tags

NGSS.MS-PS1-4