Across
1
The Red Planet
3
Compound containing oxygen
4
Infectious microscopic agent
6
Precious yellow metallic element
Down
2
Center of an atom or cell
5
Substance with pH below 7
7
Positive particle in nucleus
8
Natural satellite of Earth
The Red Planet
Compound containing oxygen
Infectious microscopic agent
Precious yellow metallic element
Center of an atom or cell
Substance with pH below 7
Positive particle in nucleus
Natural satellite of Earth