Across
1
Fourth state of matter
5
Mass per unit volume
6
Solid with repeating atomic pattern
7
Infectious microscopic agent
8
Icy body with a tail near the sun
Down
1
Tectonic landmass section
2
Naturally occurring inorganic solid
3
Disturbance that transfers energy
4
Curved glass that refracts light
9
Unit of electric potential
10
Absolute temperature scale unit