I chose this photo because this is the universe, everything is made of atoms. Matter is made of atoms.

I chose this photo for atom because this is supposedly what a atom looks like. Even if it's something else everything is made of atoms.

I chose the periodic table as a photo because the period table is a table of elements.

I chose this photo because it is gas in space and multiple gasses are on the periodic table.

I chose this photo because a molecule is at least 2 atoms combined, this looks like many atoms combined.

I chose this photo because a compound is at least 2 different atoms combined, and in this photo there are multiple different colors of atoms.

a multiplier or factor that measures some property.

written or printed below the line.

The process of plants making food for themselves.