Across
1
Naturally occurring inorganic solid
5
Hottest planet in solar system
6
Group of similar cells
11
Unit of power
Down
2
Icy body with a tail near the sun
3
Substance with pH below 7
4
Tissue that contracts for movement
7
Fourth state of matter
8
Tectonic landmass section
9
Unit of electric potential
10
Unit of force