Across
1
Compound containing oxygen
3
The Red Planet
7
Form of thermal energy
8
Fourth state of matter
10
Unit of electric potential
11
Amplified beam of light
Down
2
Biological catalyst
4
Reddish electrical conductor
5
Push or pull on an object
6
Chemical element in table salt
9
Solid with repeating atomic pattern
12
Measure of matter in an object