Across
1
Natural satellite of Earth
4
Unit of energy
6
Reddish electrical conductor
7
Infectious microscopic agent
8
Unit of force
10
Tectonic landmass section
12
Group of similar cells
Down
2
Absolute temperature scale unit
3
Nerve cell in the brain
5
Positive particle in nucleus
9
Amplified beam of light
11
Substance with pH above 7