Across
1
Solid with repeating atomic pattern
3
Compound containing oxygen
5
Unit of electric potential
6
Chemical element in table salt
8
Reddish electrical conductor
10
Group of similar cells
Down
2
Disturbance that transfers energy
3
Path of a planet around the sun
4
Force that attracts objects together
7
Push or pull on an object
9
Blocking of light by a celestial body
11
Mass per unit volume