Across
1
Gas essential for breathing
3
Molten rock beneath Earth surface
5
Push or pull on an object
7
Tissue that contracts for movement
9
Compound containing oxygen
11
Our home planet
14
Tectonic landmass section
Down
2
Substance with pH above 7
4
Particle of light
6
Chemical element in table salt
8
Form of thermal energy
10
Smallest unit of an element
12
Solid with repeating atomic pattern
13
Absolute temperature scale unit