Across
1
Gas form of a liquid
4
Infectious microscopic agent
6
Unit of force
7
Group of similar cells
9
Push or pull on an object
Down
2
Solid with repeating atomic pattern
3
Our home planet
5
Disturbance that transfers energy
8
Measure of matter in an object
10
Positive particle in nucleus
11
Curved glass that refracts light
12
Compound containing oxygen
13
Reddish electrical conductor