Across
1
Glass that splits light into spectrum
2
Infectious microscopic agent
3
Unit of power
4
Group of similar cells
8
Gas form of a liquid
10
Biological catalyst
11
Positive particle in nucleus
Down
1
Particle of light
2
Hottest planet in solar system
5
Naturally occurring inorganic solid
6
Measure of matter in an object
7
Chemical element in table salt
9
Force that attracts objects together