Across
1
Hottest planet in solar system
4
Unit of heredity
5
Molten rock beneath Earth surface
7
Unit of force
Down
2
Disturbance that transfers energy
3
Mass per unit volume
6
The Red Planet
8
Fourth state of matter
Hottest planet in solar system
Unit of heredity
Molten rock beneath Earth surface
Unit of force
Disturbance that transfers energy
Mass per unit volume
The Red Planet
Fourth state of matter