Anything that takes up space has mass. (All matter is made up of atoms.

The smallest unit of a chemical element.

Different letters and numbers on a periodic table that each represent something.

A list of chemical elements that exist in the universe that have been discovered.

Formed when 2 or more atoms join together.

Formed when two or more different atoms are formed together.

Subscripts tell you how many elements there are.

Coefficients multiply the number of mulecules you are making.

Green plants and other organisms use sunlight to synthesize foods from carbon dioxide and water.

A process in living organisms involving the production of energy.

A substance produced during a natural, chemical, or manufacturing process.

A substance that takes part in and undergoes change during a reaction.

A simple sugar that is in an important energy source in living organisms.

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration.

a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.