Across
1
Fourth state of matter
3
Unit of force
4
Element found in all living things
Down
1
Positive particle in nucleus
2
Preserved remains of ancient life
4
Icy body with a tail near the sun
5
Smallest unit of an element
6
Second lightest element
Fourth state of matter
Unit of force
Element found in all living things
Positive particle in nucleus
Preserved remains of ancient life
Icy body with a tail near the sun
Smallest unit of an element
Second lightest element