Across
1
Compound containing oxygen
4
Disturbance that transfers energy
7
Glass that splits light into spectrum
9
Blocking of light by a celestial body
12
Curved glass that refracts light
13
Tectonic landmass section
Down
2
Unit of heredity
3
Reddish electrical conductor
5
Naturally occurring inorganic solid
6
The Red Planet
8
Molten rock beneath Earth surface
10
Preserved remains of ancient life
11
Path of a planet around the sun