Physical and Chemical Changes

Front

What is a chemical change?

Back

A chemical change is when a substance undergoes a transformation that results in the formation of new substances.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Is frying an egg a physical or chemical change?

Back

Chemical change.

Front

Is snow melting a physical or chemical change?

Back

Physical change.

Front

Is cutting a pizza a physical or chemical change?

Back

Physical change.

Front

What is the smaller part in an aqueous solution called?

Back

Solute.

Front

What is the term for a mixture of two or more substances?

Back

Solution.

Front

What is the term for the substance that dissolves the solute in a solution?

Back

Solvent.

Front

What happens to the chemical composition of a substance during a chemical change?

Back

The chemical composition changes, resulting in new substances.

Front

Can a physical change be reversed?

Back

Yes, many physical changes can be reversed, such as freezing and melting.