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