Across
1
Gas form of a liquid
4
Precious yellow metallic element
5
Positive particle in nucleus
6
Substance with pH above 7
8
Preserved remains of ancient life
Down
2
Our home planet
3
Amplified beam of light
7
Blocking of light by a celestial body
Gas form of a liquid
Precious yellow metallic element
Positive particle in nucleus
Substance with pH above 7
Preserved remains of ancient life
Our home planet
Amplified beam of light
Blocking of light by a celestial body