Across
1
Precious yellow metallic element
4
Measure of matter in an object
5
Icy body with a tail near the sun
7
Disturbance that transfers energy
10
Tectonic landmass section
11
Amplified beam of light
12
Form of thermal energy
Down
2
Unit of electric potential
3
Chemical element in table salt
6
Unit of energy
8
Tissue that contracts for movement
9
Molten rock beneath Earth surface