Across
1
Hottest planet in solar system
2
Fourth state of matter
4
Tissue that contracts for movement
5
Unit of electric potential
8
Tectonic landmass section
11
Disturbance that transfers energy
12
Molten rock beneath Earth surface
Down
2
Glass that splits light into spectrum
3
Naturally occurring inorganic solid
5
Gas form of a liquid
6
Measure of matter in an object
7
Unit of heredity
9
Blocking of light by a celestial body
10
Unit of force