Chemical and Physical Changes

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

Front

What is a physical change?

Back

A physical change is a process that alters the form or appearance of a substance but does not change its chemical composition.

Front

Give an example of a chemical change.

Back

Baking soda and vinegar react to produce carbon dioxide.

Front

Give an example of a physical change.

Back

Boiling water is a physical change because it changes from liquid to gas but remains water.

Front

What happens to the weight of matter during a physical change?

Back

The weight of matter stays the same during a physical change.

Front

What is rusting an example of?

Back

Rusting is an example of a chemical change.

Front

What happens to cake batter when it is baked?

Back

Cake batter undergoes a chemical change to become a cake.

Front

Is melting ice a chemical or physical change?

Back

Melting ice is a physical change.

Front

What is the main difference between chemical and physical changes?

Back

The main difference is that chemical changes create new substances, while physical changes do not.

Front

What is an indicator of a chemical change?

Back

An indicator of a chemical change can be a color change, gas production, or temperature change.