Across
1
Tectonic landmass section
5
Center of an atom or cell
6
Smallest unit of an element
9
Push or pull on an object
10
Precious yellow metallic element
Down
2
Disturbance that transfers energy
3
Naturally occurring inorganic solid
4
Gas form of a liquid
7
Path of a planet around the sun
8
Hottest planet in solar system