Across
1
Unit of heredity
4
Solid with repeating atomic pattern
5
Smallest unit of an element
7
Chemical element in table salt
9
Tectonic landmass section
11
Fourth state of matter
Down
2
Molten rock beneath Earth surface
3
Center of an atom or cell
6
Positive particle in nucleus
8
Blocking of light by a celestial body
10
Unit of energy