Across
1
Tectonic landmass section
2
Precious yellow metallic element
4
Form of thermal energy
5
Reddish electrical conductor
8
Absolute temperature scale unit
10
Gas form of a liquid
11
Hottest planet in solar system
Down
1
Positive particle in nucleus
3
Mass per unit volume
6
Force that attracts objects together
7
Unit of heredity
9
Compound containing oxygen