Across
1
Tectonic landmass section
3
Basic unit of life
5
Force that attracts objects together
7
Center of an atom or cell
10
Icy body with a tail near the sun
Down
2
Smallest unit of an element
3
Solid with repeating atomic pattern
4
Unit of energy
5
Unit of heredity
6
Substance with pH below 7
8
Absolute temperature scale unit
9
Disturbance that transfers energy