Across
1
Compound containing oxygen
4
The Red Planet
7
Reddish electrical conductor
9
Positive particle in nucleus
11
Unit of force
12
Solid with repeating atomic pattern
Down
2
Substance with pH above 7
3
Unit of electric potential
5
Magnetic metallic element
6
Center of an atom or cell
8
Tectonic landmass section
10
Ball of burning gas in space