Across
1
Glass that splits light into spectrum
2
Unit of heredity
4
Center of an atom or cell
5
Disturbance that transfers energy
7
Path of a planet around the sun
13
Form of thermal energy
14
Curved glass that refracts light
Down
1
Particle of light
3
Solid with repeating atomic pattern
6
Unit of energy
8
Group of similar cells
9
Biological catalyst
10
Blocking of light by a celestial body
11
Nerve cell in the brain
12
Ball of burning gas in space