Across
1
Precious yellow metallic element
4
Our home planet
5
Unit of electric potential
7
Unit of force
11
Solid with repeating atomic pattern
12
Disturbance that transfers energy
14
Nerve cell in the brain
Down
2
Particle of light
3
Compound containing oxygen
6
Glass that splits light into spectrum
8
Element found in all living things
9
Icy body with a tail near the sun
10
Biological catalyst
13
Infectious microscopic agent