Across
1
Compound containing oxygen
5
Icy body with a tail near the sun
6
Tectonic landmass section
8
Disturbance that transfers energy
10
Unit of force
Down
2
Naturally occurring inorganic solid
3
Unit of energy
4
Gas essential for breathing
7
Smallest unit of an element
9
Path of a planet around the sun
11
Form of thermal energy