Across
1
Infectious microscopic agent
3
Magnetic metallic element
5
Naturally occurring inorganic solid
9
Ball of burning gas in space
10
Solid with repeating atomic pattern
11
Substance with pH above 7
Down
2
Path of a planet around the sun
4
Nerve cell in the brain
6
Compound containing oxygen
7
Preserved remains of ancient life
8
Glass that splits light into spectrum