Across
1
Curved glass that refracts light
4
Tectonic landmass section
5
Solid with repeating atomic pattern
7
Substance with pH above 7
8
Push or pull on an object
9
Nerve cell in the brain
Down
2
Unit of force
3
Glass that splits light into spectrum
4
Fourth state of matter
6
Force that attracts objects together
8
Preserved remains of ancient life