Across
1
Fourth state of matter
4
Measure of matter in an object
6
Solid with repeating atomic pattern
7
Gas essential for breathing
8
Push or pull on an object
11
Chemical element in table salt
13
Tissue that contracts for movement
Down
1
Tectonic landmass section
2
Substance with pH below 7
3
Amplified beam of light
4
The Red Planet
5
Naturally occurring inorganic solid
9
Center of an atom or cell
10
Unit of electric potential
12
Unit of heredity