Chemical and Physical Changes

Front

What is a physical property?

Back

A characteristic of a substance that can be observed or measured without changing its identity, such as color, shape, or boiling point.

Front

What is a chemical property?

Back

A characteristic of a substance that describes its ability to change into different substances, such as flammability or reactivity.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition, such as freezing or boiling.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as rusting of iron or burning wood.

Front

Give an example of a physical change.

Back

Freezing juice into ice.

Front

Give an example of a chemical change.

Back

Iron rusting when exposed to moisture.

Front

What happens to water when it is heated to boiling?

Back

It undergoes a physical change from liquid to gas (steam) without changing its chemical composition.

Front

What is the boiling point?

Back

The temperature at which a liquid turns into vapor; it is a physical property.

Front

Is color a physical or chemical property?

Back

Color is a physical property.

Front

What is flammability?

Back

Flammability is a chemical property that describes how easily a substance can catch fire.