Across
1
Ball of burning gas in space
3
Hottest planet in solar system
4
Mass per unit volume
6
Tissue that contracts for movement
10
Gas form of a liquid
11
Compound containing oxygen
Down
1
Chemical element in table salt
2
Nerve cell in the brain
3
Unit of electric potential
5
Tectonic landmass section
7
Substance with pH above 7
8
Reddish electrical conductor
9
Substance with pH below 7