Across
1
Tectonic landmass section
4
Natural satellite of Earth
5
Positive particle in nucleus
8
Nerve cell in the brain
9
Amplified beam of light
10
Push or pull on an object
Down
2
Absolute temperature scale unit
3
Compound containing oxygen
4
Tissue that contracts for movement
6
Element found in all living things
7
Path of a planet around the sun