Across
1
Icy body with a tail near the sun
3
Hottest planet in solar system
4
Second lightest element
7
Unit of heredity
8
Substance with pH below 7
10
The Red Planet
Down
2
Unit of energy
3
Unit of electric potential
4
Form of thermal energy
5
Tissue that contracts for movement
6
Magnetic metallic element
9
Chemical element in table salt