Anything that takes up space and has mass

The smallest unit of a chemical element

Each element is made up of only one kind of atom

Formed when 2 or more atoms join together

2 or more DIFFERENT atoms

The small number that tells you how many atoms of an element you need for a molecule

The number before a thing saying how many molecules your making

How plants make their food.

Cells making energy

What the effect of _________ is.

What makes the products