Across
1
The Red Planet
3
Tectonic landmass section
4
Second lightest element
6
Unit of electric potential
8
Reddish electrical conductor
11
Magnetic metallic element
Down
2
Push or pull on an object
3
Fourth state of matter
5
Path of a planet around the sun
7
Chemical element in table salt
9
Ball of burning gas in space
10
Compound containing oxygen
12
Gas form of a liquid