Across
1
Amplified beam of light
3
Natural satellite of Earth
4
Unit of electric potential
5
Compound containing oxygen
8
The Red Planet
10
Unit of energy
Down
2
Nerve cell in the brain
3
Tissue that contracts for movement
6
Reddish electrical conductor
7
Absolute temperature scale unit
9
Icy body with a tail near the sun
11
Positive particle in nucleus