Physical and Chemical Changes

Front

What is a chemical change?

Back

A chemical change is when matter changes to form a new substance.

Front

What happens during a chemical change?

Back

One or more new substances are created.

Front

What is an example of a physical change?

Back

Ice melting is an example of a physical change.

Front

What is formed when matter undergoes a chemical change?

Back

New substances are always formed.

Front

What is a sign that a chemical reaction has occurred?

Back

Formation of gas bubbles is a sign of a chemical reaction.

Front

What is a physical change?

Back

A physical change is a change in size, shape, or state of matter without forming a new substance.

Front

Can a chemical change be reversed?

Back

Most chemical changes cannot be easily reversed.

Front

What is an example of a chemical change?

Back

Wood burning is an example of a chemical change.

Front

What happens to the properties of substances during a chemical change?

Back

The properties of the original substances change when a chemical change occurs.

Front

What is rusting?

Back

Rusting is a chemical change that occurs when iron reacts with oxygen.