Across
1
Unit of force
3
Basic unit of life
5
Solid with repeating atomic pattern
6
The Red Planet
Down
2
Smallest unit of an element
3
Icy body with a tail near the sun
4
Preserved remains of ancient life
7
Unit of energy
Unit of force
Basic unit of life
Solid with repeating atomic pattern
The Red Planet
Smallest unit of an element
Icy body with a tail near the sun
Preserved remains of ancient life
Unit of energy