Across
1
Naturally occurring inorganic solid
5
Chemical element in table salt
6
Blocking of light by a celestial body
8
Positive particle in nucleus
11
Tectonic landmass section
Down
2
Compound containing oxygen
3
Second lightest element
4
Amplified beam of light
7
Unit of electric potential
9
Hottest planet in solar system
10
Unit of power