Across
1
Unit of energy
3
Measure of matter in an object
5
Compound containing oxygen
7
Tectonic landmass section
Down
2
Center of an atom or cell
4
Unit of heredity
6
Preserved remains of ancient life
8
Ball of burning gas in space
Unit of energy
Measure of matter in an object
Compound containing oxygen
Tectonic landmass section
Center of an atom or cell
Unit of heredity
Preserved remains of ancient life
Ball of burning gas in space