Across
1
Tectonic landmass section
5
Blocking of light by a celestial body
6
Compound containing oxygen
7
Substance with pH below 7
10
Hottest planet in solar system
Down
2
Group of similar cells
3
Unit of energy
4
Disturbance that transfers energy
6
Gas essential for breathing
8
Push or pull on an object
9
Glass that splits light into spectrum