Across
1
Nerve cell in the brain
5
Gas form of a liquid
7
Reddish electrical conductor
9
Tectonic landmass section
10
Icy body with a tail near the sun
Down
2
The Red Planet
3
Element found in all living things
4
Magnetic metallic element
6
Particle of light
8
Biological catalyst
9
Glass that splits light into spectrum