Across
1
Unit of force
3
Glass that splits light into spectrum
5
Our home planet
6
Preserved remains of ancient life
7
Force that attracts objects together
11
Gas form of a liquid
12
Hottest planet in solar system
13
Fourth state of matter
Down
2
Group of similar cells
4
Gas essential for breathing
8
Solid with repeating atomic pattern
9
Chemical element in table salt
10
Infectious microscopic agent