Physical and Chemical Changes

Front

What is a physical change?

Back

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 change that results in the formation of new chemical substances.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is an example of a chemical reaction?

Back

Cookies baking in an oven.

Front

What is an indicator of a chemical change?

Back

Signs include color change, temperature change, gas production, and light production.

Front

Is melting chocolate a physical or chemical change?

Back

Physical change.

Front

Is mold growing on cheese a physical or chemical change?

Back

Chemical change.

Front

What happens to the temperature when two liquids are mixed and a chemical change occurs?

Back

The temperature increases.

Front

What is produced during a chemical change?

Back

New substances are formed.

Front

What is an example of a physical change?

Back

Paper cut into small pieces.