Matter

Front

What is matter?

Back

Matter is anything that takes up space and has mass.

Front

What happens to the mass of an oreo cookie when it is crushed into crumbs?

Back

The mass remains the same; it is still 20 grams.

Front

What is a chemical reaction?

Back

A process where the molecular structure of a substance changes.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, the total mass of the reactants equals the total mass of the products.

Front

If 250 grams of iron and sand are separated and the mass of the sand is 150 grams, what is the mass of the iron?

Back

100 grams.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A substance that is formed as a result of a chemical reaction.

Front

Can matter exist in different states?

Back

Yes, matter can exist as solids, liquids, and gases.

Front

What is an example of a physical change?

Back

Melting ice is a physical change.

Front

What is an example of a chemical change?

Back

Burning wood is a chemical change.