Across
1
Ball of burning gas in space
3
Icy body with a tail near the sun
4
Unit of heredity
9
Glass that splits light into spectrum
10
Our home planet
11
Disturbance that transfers energy
12
Push or pull on an object
Down
2
Group of similar cells
5
Solid with repeating atomic pattern
6
Unit of electric potential
7
Unit of energy
8
Unit of force
13
Molten rock beneath Earth surface