Across
1
Positive particle in nucleus
5
Smallest unit of an element
6
Tectonic landmass section
7
Element found in all living things
8
Magnetic metallic element
9
Preserved remains of ancient life
10
Unit of force
Down
2
Absolute temperature scale unit
3
Naturally occurring inorganic solid
4
Form of thermal energy
6
Glass that splits light into spectrum
7
Solid with repeating atomic pattern