Front

What happens to matter when something burns?

Back

It escapes as gas.

Front

What must matter have in addition to weight?

Back

It must take up space.

Front

What happens to the weight of a sealed air bag before and after it inflates?

Back

The weight stays the same.

Front

If 25 grams of sugar dissolves in 150 grams of water, what is the total weight of the liquid?

Back

175 grams.

Front

As a balloon collects gas, what happens to the weight reading on the scale?

Back

The weight stays the same.

Front

What is matter?

Back

Anything that has weight and takes up space.

Front

Can matter be invisible?

Back

Yes, matter can be invisible, like air.

Front

What is an example of matter that you can see?

Back

A rock is an example of matter you can see.

Front

What happens to the total weight of matter in a closed system?

Back

The total weight remains constant.

Front

What is the principle of conservation of matter?

Back

Matter cannot be created or destroyed, only changed in form.