Across
1
Unit of energy
3
Element found in all living things
6
Compound containing oxygen
7
Absolute temperature scale unit
9
Solid with repeating atomic pattern
10
Unit of electric potential
Down
2
Reddish electrical conductor
4
Center of an atom or cell
5
Precious yellow metallic element
8
Form of thermal energy
11
The Red Planet
12
Group of similar cells
13
Amplified beam of light