Across
1
Molten rock beneath Earth surface
4
Amplified beam of light
5
Unit of force
6
Center of an atom or cell
9
Disturbance that transfers energy
10
Chemical element in table salt
Down
2
Solid with repeating atomic pattern
3
Natural satellite of Earth
7
Gas form of a liquid
8
Biological catalyst
11
Tissue that contracts for movement
12
Particle of light