Across
1
Naturally occurring inorganic solid
2
Hottest planet in solar system
4
Icy body with a tail near the sun
5
Mass per unit volume
7
Our home planet
Down
1
Molten rock beneath Earth surface
2
Unit of electric potential
3
Positive particle in nucleus
4
Reddish electrical conductor
6
Curved glass that refracts light
8
Ball of burning gas in space
9
Disturbance that transfers energy
10
Solid with repeating atomic pattern