Across
1
Unit of electric potential
3
Glass that splits light into spectrum
4
Ball of burning gas in space
7
Unit of energy
9
Our home planet
10
Chemical element in table salt
11
Disturbance that transfers energy
13
Positive particle in nucleus
Down
1
Infectious microscopic agent
2
Tissue that contracts for movement
5
Solid with repeating atomic pattern
6
Nerve cell in the brain
8
Smallest unit of an element
12
Naturally occurring inorganic solid
14
Fourth state of matter