Across
1
Preserved remains of ancient life
4
Absolute temperature scale unit
5
Force that attracts objects together
7
Measure of matter in an object
8
Disturbance that transfers energy
9
Natural satellite of Earth
11
Infectious microscopic agent
Down
2
Tectonic landmass section
3
Magnetic metallic element
6
Chemical element in table salt
8
Unit of power
10
Glass that splits light into spectrum
11
Unit of electric potential
12
Solid with repeating atomic pattern