Across
1
Compound containing oxygen
5
Unit of heredity
6
Substance with pH below 7
7
Positive particle in nucleus
Down
2
Our home planet
3
Magnetic metallic element
4
Group of similar cells
8
Naturally occurring inorganic solid
Compound containing oxygen
Unit of heredity
Substance with pH below 7
Positive particle in nucleus
Our home planet
Magnetic metallic element
Group of similar cells
Naturally occurring inorganic solid