Across
1
Gas form of a liquid
3
Preserved remains of ancient life
4
Curved glass that refracts light
8
Positive particle in nucleus
Down
2
Compound containing oxygen
5
The Red Planet
6
Unit of force
7
Amplified beam of light
Gas form of a liquid
Preserved remains of ancient life
Curved glass that refracts light
Positive particle in nucleus
Compound containing oxygen
The Red Planet
Unit of force
Amplified beam of light