Physical and Chemical Changes Advisory

Front

What is a chemical change?

Back

A process where one or more substances are transformed into new substances with different properties.

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

Example of a chemical change?

Back

Rusting of a bicycle.

Front

Example of a physical change?

Back

Melting a chocolate bar.

Front

What is a sign of a chemical reaction?

Back

Color changes, gas formation, light production.

Front

What is NOT a sign of a chemical reaction?

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Cutting a pizza into fourths.

Front

What happens during a chemical change?

Back

A new substance is formed with different properties.

Front

What happens during a physical change?

Back

The substance may change form or appearance but remains the same substance.

Front

Is inflating a tire a physical or chemical change?

Back

Physical Change.

Front

What is an example of a physical change?

Back

Washing a dog.