Across
1
Compound containing oxygen
5
Tissue that contracts for movement
7
Unit of power
8
Amplified beam of light
9
Biological catalyst
11
Particle of light
Down
2
Absolute temperature scale unit
3
Tectonic landmass section
4
Unit of electric potential
5
Natural satellite of Earth
6
Center of an atom or cell
10
Measure of matter in an object
12
Path of a planet around the sun