Across
1
Push or pull on an object
4
The Red Planet
5
Tectonic landmass section
6
Unit of heredity
7
Measure of matter in an object
9
Form of thermal energy
11
Element found in all living things
Down
2
Nerve cell in the brain
3
Substance with pH above 7
5
Fourth state of matter
8
Icy body with a tail near the sun
10
Force that attracts objects together