Across
1
Infectious microscopic agent
3
Smallest unit of an element
7
Fourth state of matter
8
Solid with repeating atomic pattern
9
Substance with pH below 7
10
Path of a planet around the sun
Down
2
Amplified beam of light
4
Molten rock beneath Earth surface
5
Ball of burning gas in space
6
Force that attracts objects together
11
Basic unit of life