Across
1
Tissue that contracts for movement
2
Our home planet
4
Absolute temperature scale unit
5
Nerve cell in the brain
6
Push or pull on an object
Down
2
Biological catalyst
3
Tectonic landmass section
7
Center of an atom or cell
8
Naturally occurring inorganic solid
9
Smallest unit of an element
10
Force that attracts objects together