Across
1
Naturally occurring inorganic solid
5
Gas essential for breathing
7
Solid with repeating atomic pattern
8
Measure of matter in an object
10
Tissue that contracts for movement
11
Force that attracts objects together
Down
2
Center of an atom or cell
3
Chemical element in table salt
4
Amplified beam of light
6
Absolute temperature scale unit
9
Molten rock beneath Earth surface