Across
1
Naturally occurring inorganic solid
5
Substance with pH below 7
6
Precious yellow metallic element
8
Hottest planet in solar system
10
Icy body with a tail near the sun
Down
1
Molten rock beneath Earth surface
2
Unit of heredity
3
Solid with repeating atomic pattern
4
Preserved remains of ancient life
7
Infectious microscopic agent
8
Unit of electric potential
9
Mass per unit volume