Across
1
Hottest planet in solar system
2
Icy body with a tail near the sun
4
Molten rock beneath Earth surface
5
Compound containing oxygen
6
Solid with repeating atomic pattern
8
Push or pull on an object
12
Center of an atom or cell
Down
1
Gas form of a liquid
2
Element found in all living things
3
Chemical element in table salt
7
Disturbance that transfers energy
9
Unit of power
10
Absolute temperature scale unit
11
Unit of force
13
Group of similar cells