Across
1
Amplified beam of light
4
Force that attracts objects together
5
Reddish electrical conductor
6
Biological catalyst
12
Measure of matter in an object
13
Ball of burning gas in space
Down
2
Gas form of a liquid
3
Tissue that contracts for movement
7
Disturbance that transfers energy
8
Substance with pH above 7
9
Solid with repeating atomic pattern
10
Magnetic metallic element
11
Push or pull on an object