Across
1
Ball of burning gas in space
3
Unit of heredity
6
Natural satellite of Earth
8
Positive particle in nucleus
Down
2
Substance with pH above 7
4
Form of thermal energy
5
Compound containing oxygen
7
Element found in all living things
Ball of burning gas in space
Unit of heredity
Natural satellite of Earth
Positive particle in nucleus
Substance with pH above 7
Form of thermal energy
Compound containing oxygen
Element found in all living things