Across
1
Push or pull on an object
3
Disturbance that transfers energy
5
Element found in all living things
6
Nerve cell in the brain
8
Form of thermal energy
10
Smallest unit of an element
11
Measure of matter in an object
Down
2
Absolute temperature scale unit
4
Particle of light
6
Unit of force
7
Ball of burning gas in space
9
Mass per unit volume