Across
1
Biological catalyst
4
Hottest planet in solar system
6
Magnetic metallic element
7
Naturally occurring inorganic solid
9
Force that attracts objects together
10
Push or pull on an object
12
Substance with pH below 7
Down
2
Chemical element in table salt
3
Unit of force
5
Disturbance that transfers energy
7
Measure of matter in an object
8
Gas form of a liquid
11
Form of thermal energy
13
Glass that splits light into spectrum