Across
1
Icy body with a tail near the sun
3
Tectonic landmass section
4
Naturally occurring inorganic solid
6
Reddish electrical conductor
8
Nerve cell in the brain
Down
2
Magnetic metallic element
3
Positive particle in nucleus
5
Unit of force
7
Second lightest element
8
Center of an atom or cell
9
Chemical element in table salt