Anything that has mass and takes up space?

Each element is made of one type of atom.

The smallest piece of something.

A list of all the elements.

When two atoms combine.

Two or more atoms joined together.

A symbol used in a program, alone or with others, to specify one of the elements of an array.

A multiplier or factor that measures some property.

Photosynthesis is the process in which plants make their own food.

Cellular respiration is the process in which all living things break apart glucose to release energy.

What comes out of a reaction

What goes in a reaction.

Glucose is a product of photosynthesis.

What trees need to grow, and where most of their volume comes from.

What trees produce after taking in carbon dioxide.