Physical vs. Chemical Changes

Front

What is a chemical change?

Back

A change in which new substances are formed.

Front

What is a physical change?

Back

A change that alters the physical properties of a substance without changing its chemical composition.

Front

Give an example of a chemical change.

Back

An explosion occurs.

Front

Give an example of a physical change.

Back

Water boiling.

Front

What happens during a chemical change?

Back

The chemical composition of a substance changes, resulting in the formation of new substances.

Front

What happens during a physical change?

Back

The physical properties of a substance change, but its chemical composition remains the same.

Front

What is rusting?

Back

A chemical change that occurs when iron reacts with oxygen and moisture to form iron oxide.

Front

What is melting?

Back

A physical change where a solid turns into a liquid.

Front

What is boiling?

Back

A physical change where a liquid turns into a gas.

Front

What is tarnishing?

Back

A chemical change that occurs when a metal reacts with sulfur or oxygen, forming a layer of corrosion.