Chemical vs. Physical 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 changing 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.

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

Give an example of a chemical change.

Back

Burning wood is an example of a chemical change.

Front

What happens to the substance in a physical change?

Back

The substance may change its form or appearance, but its chemical identity remains the same.

Front

What happens to the substance in a chemical change?

Back

The substance changes into one or more different substances with new chemical properties.

Front

Is mixing fruits together a physical or chemical change?

Back

Mixing fruits together is a physical change.

Front

What is an indicator of a chemical change?

Back

An indicator of a chemical change can be a change in color, temperature, or the production of gas.

Front

What is an example of a physical change involving water?

Back

Boiling water is an example of a physical change.

Front

What is an example of a chemical change involving food?

Back

Baking a cake is an example of a chemical change.