Across
1
Naturally occurring inorganic solid
4
Hottest planet in solar system
6
Solid with repeating atomic pattern
7
Compound containing oxygen
8
Path of a planet around the sun
9
Glass that splits light into spectrum
Down
2
Center of an atom or cell
3
Absolute temperature scale unit
5
Nerve cell in the brain
6
Icy body with a tail near the sun