Across
1
Tectonic landmass section
3
Unit of force
4
Reddish electrical conductor
6
Mass per unit volume
7
Absolute temperature scale unit
9
Compound containing oxygen
Down
1
Particle of light
2
Hottest planet in solar system
4
Icy body with a tail near the sun
5
Center of an atom or cell
8
Glass that splits light into spectrum
10
Solid with repeating atomic pattern
11
Element found in all living things