Across
1
Magnetic metallic element
4
Tissue that contracts for movement
5
Unit of force
8
Fourth state of matter
10
Unit of electric potential
12
Blocking of light by a celestial body
Down
2
Natural satellite of Earth
3
Group of similar cells
6
Solid with repeating atomic pattern
7
Glass that splits light into spectrum
9
Disturbance that transfers energy
11
Unit of heredity