Chemical and Physical Changes Quiz

Is wood burning a chemical change or physical change?

• Chemical change

• Physical change

• No change

Color, smell, and density are examples of what type of property?

• Chemical change

• Physical change

• No change

What happens in ALL chemical changes?

• An explosion

• A new substance is formed

• Change in state of matter

• Nothing happens

Rusting is an example of what type of change?

• Chemical change

• Physical change

• No change

A mixture is defined as

• A combination of two or more substances

• A combination of two or more substances that maintain their physical properties

• When you have no idea what to do

• Physical properties

Glass breaking is an example of

• Physical change

• Chemical change

• No change

Emi drops a cup of baking soda into a glass container that has vinegar at the bottom of it. Then, she quickly puts a balloon on top of the container. What do you predict will happen to the balloon?

• The balloon will get bigger because it will become filled with solid (baking soda) particles that are too small to be seen.

• The balloon will get bigger because it will become filled with liquid (vinegar) particles that are too small to be seen.

• The balloon will get bigger because it will become filled with gas particles that are too small to be seen.

• The balloon will stay the same because it will not become filled with anything.

If Laila weighs the salt and vinegar solution and the pennies after the experiment, what do you think she will find?

• The solution will weigh more and the pennies will weigh less after the experiment.

• The solution will weigh less and the pennies will weigh more after the experiment.

• The solution will weigh the same and the pennies will weigh the same after the experiment.

• The solution will weigh the same and the pennies will weigh less after the experiment.

Why does the plastic bag expand when baking soda mixes with vinegar?

• The bag is heated by the reaction.

• Gas is produced, causing the bag to expand.

• The bag absorbs the vinegar.

• The baking soda dissolves completely.

What would happen if two cups of baking soda are added to the vinegar in the bag?

• The bag would shrink.

• The bag would expand more.

• The bag would stay the same.

• The vinegar would evaporate.