Across
1
Amplified beam of light
5
Element found in all living things
6
Path of a planet around the sun
7
The Red Planet
9
Magnetic metallic element
10
Tectonic landmass section
Down
2
Preserved remains of ancient life
3
Push or pull on an object
4
Substance with pH below 7
7
Measure of matter in an object
8
Force that attracts objects together