Across
1
Compound containing oxygen
4
Hottest planet in solar system
5
Unit of energy
7
Icy body with a tail near the sun
Down
2
Tissue that contracts for movement
3
Particle of light
6
Form of thermal energy
8
Mass per unit volume
Compound containing oxygen
Hottest planet in solar system
Unit of energy
Icy body with a tail near the sun
Tissue that contracts for movement
Particle of light
Form of thermal energy
Mass per unit volume