Across
1
Center of an atom or cell
4
Solid with repeating atomic pattern
5
Tissue that contracts for movement
9
Basic unit of life
10
Positive particle in nucleus
Down
2
Tectonic landmass section
3
Blocking of light by a celestial body
6
Push or pull on an object
7
Unit of energy
8
Magnetic metallic element
11
Unit of force
12
Naturally occurring inorganic solid