Across
1
Amplified beam of light
4
Unit of heredity
5
Measure of matter in an object
6
Solid with repeating atomic pattern
8
Compound containing oxygen
9
Magnetic metallic element
10
Reddish electrical conductor
13
Path of a planet around the sun
Down
2
Group of similar cells
3
Push or pull on an object
5
Naturally occurring inorganic solid
7
Form of thermal energy
11
Unit of power
12
Force that attracts objects together