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.

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, involving a rearrangement of atoms.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is an example of a physical change?

Back

Cutting an orange is an example of a physical change.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change.

Tags

NGSS.MS-PS1-2

Front

What state of matter is water at room temperature?

Back

Water is a liquid at room temperature.

Tags

NGSS.MS-PS1-4

Front

What state of matter is smoke?

Back

Smoke is a gas.

Front

What is the state of matter of wood?

Back

Wood is a solid.

Tags

NGSS.5-PS1-3

Front

How can you identify a physical change?

Back

A physical change can be identified if the substance's physical properties change but its chemical identity remains the same.

Front

How can you identify a chemical change?

Back

A chemical change can be identified by the production of gas, color change, temperature change, or the formation of a precipitate.

Tags

NGSS.MS-PS1-2