Front

What is matter?

Back

Matter is anything that has weight and takes up space.

Front

What happens to the weight of a liquid when a solid dissolves in it?

Back

The weight of the liquid increases by the weight of the solid that dissolves.

Front

What is the principle of conservation of matter?

Back

The principle of conservation of matter states that matter cannot be created or destroyed, only changed in form.

Front

If you weigh a sealed bag of air before and after it inflates, what will happen to the weight?

Back

The weight will stay the same.

Front

What evidence shows that matter is conserved in a chemical reaction?

Back

The total weight of the substances before the reaction is about the same as the total weight after the reaction.

Front

What happens to matter when something burns?

Back

When something burns, it often changes into gas, but the total amount of matter remains the same.

Front

Can matter be invisible?

Back

Yes, matter can be invisible, like air, but it still takes up space and has weight.

Front

What is an example of matter that is a gas?

Back

Air is an example of matter that is a gas.

Front

What happens to the weight of a mixture?

Back

The weight of a mixture is the sum of the weights of all the components.

Front

What is an example of matter changing form?

Back

Ice melting into water is an example of matter changing form.