Chemical Changes

Front

What is a chemical change?

Back

A process where one or more new substances are created.

Front

What happens to chemical energy when you eat a meal?

Back

It is transformed into thermal energy.

Front

What is an example of a physical change?

Back

Water freezing.

Front

What is NOT an example of a physical change?

Back

Rust.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not create new substances, while a chemical change does.

Front

What is an example of a chemical change?

Back

Burning wood.

Front

What occurs during a chemical change?

Back

Atoms rearrange to form new substances.

Front

What is thermal energy?

Back

Energy that comes from the temperature of matter.

Front

What is an example of a physical change involving shape?

Back

Crumpling paper.

Front

What is the role of atoms in chemical changes?

Back

Atoms are rearranged to form new substances.