Chemical and Physical Changes in Matter

Front

What is a physical change?

Back

A physical change is a change in which no new substances are formed. Examples include melting, freezing, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new substances. Examples include rusting, burning, and cooking.

Front

What happens to the atoms during a physical change?

Back

During a physical change, the atoms remain the same; they are just rearranged.

Front

What happens to the atoms during a chemical change?

Back

During a chemical change, the atoms are rearranged to form new substances.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

What is an example of a chemical change?

Back

An example of a chemical change is baking a cake.

Front

How can you separate a mixture of salt and water?

Back

You can separate a mixture of salt and water by boiling the solution, which leaves the salt behind.

Front

What is melting?

Back

Melting is the process of a solid turning into a liquid when heat is applied.

Front

What is boiling?

Back

Boiling is the process of a liquid turning into a gas when heat is applied.

Front

What is freezing?

Back

Freezing is the process of a liquid turning into a solid when it loses heat.