Across
1
Solid with repeating atomic pattern
4
Tectonic landmass section
5
Biological catalyst
6
Compound containing oxygen
7
Gas form of a liquid
10
Amplified beam of light
Down
2
Force that attracts objects together
3
Unit of power
4
Fourth state of matter
8
Path of a planet around the sun
9
Icy body with a tail near the sun