Across
1
Measure of matter in an object
3
Second lightest element
6
Unit of force
8
Icy body with a tail near the sun
Down
2
Tectonic landmass section
4
The Red Planet
5
Magnetic metallic element
7
Unit of power
Measure of matter in an object
Second lightest element
Unit of force
Icy body with a tail near the sun
Tectonic landmass section
The Red Planet
Magnetic metallic element
Unit of power