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 but does not create a new substance.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

Is melting ice a physical or chemical change?

Back

Melting ice is a physical change.

Front

Is rusting iron a physical or chemical change?

Back

Rusting iron is a chemical change.

Front

What happens to the substance in a physical change?

Back

The substance may change its shape, size, or state, but it remains the same substance.

Front

What happens to the substance in a chemical change?

Back

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

Front

Give an example of a physical change.

Back

An example of a physical change is tearing a piece of paper.

Front

Give an example of a chemical change.

Back

An example of a chemical change is baking a cake.

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 indicator of a physical change?

Back

An indicator of a physical change is a change in state, such as ice melting into water.