Across
1
Fourth state of matter
3
Compound containing oxygen
4
Unit of force
6
Tectonic landmass section
Down
2
Blocking of light by a celestial body
4
Nerve cell in the brain
5
Unit of power
6
Glass that splits light into spectrum
7
Element found in all living things
8
Chemical element in table salt
9
Gas form of a liquid
10
Gas essential for breathing