Across
1
Compound containing oxygen
3
Measure of matter in an object
4
Solid with repeating atomic pattern
6
Precious yellow metallic element
8
Hottest planet in solar system
10
Reddish electrical conductor
Down
2
Preserved remains of ancient life
5
Amplified beam of light
7
Nerve cell in the brain
8
Gas form of a liquid
9
Infectious microscopic agent