Across
1
Tectonic landmass section
3
Gas essential for breathing
4
Basic unit of life
6
Chemical element in table salt
7
Fourth state of matter
8
Reddish electrical conductor
12
Ball of burning gas in space
Down
2
Group of similar cells
4
Solid with repeating atomic pattern
5
Precious yellow metallic element
7
Positive particle in nucleus
9
Natural satellite of Earth
10
Unit of force
11
Absolute temperature scale unit
13
Biological catalyst