Across
1
Molten rock beneath Earth surface
3
Hottest planet in solar system
7
Unit of force
8
Precious yellow metallic element
9
Infectious microscopic agent
10
Form of thermal energy
Down
2
Chemical element in table salt
3
Unit of electric potential
4
Force that attracts objects together
5
Curved glass that refracts light
6
Glass that splits light into spectrum
11
Absolute temperature scale unit