Across
1
Tissue that contracts for movement
5
Push or pull on an object
6
Ball of burning gas in space
7
Mass per unit volume
9
Molten rock beneath Earth surface
10
Gas form of a liquid
11
Substance with pH above 7
Down
2
Element found in all living things
3
Fourth state of matter
4
Unit of energy
8
Hottest planet in solar system
12
Tectonic landmass section