Across
1
Natural satellite of Earth
2
Basic unit of life
4
Unit of electric potential
5
Fourth state of matter
9
Substance with pH above 7
11
Smallest unit of an element
12
Compound containing oxygen
Down
2
Element found in all living things
3
Absolute temperature scale unit
6
Group of similar cells
7
Tectonic landmass section
8
Molten rock beneath Earth surface
10
Unit of force