Across
1
Amplified beam of light
3
Icy body with a tail near the sun
7
Nerve cell in the brain
8
Magnetic metallic element
10
Force that attracts objects together
Down
2
Path of a planet around the sun
4
Push or pull on an object
5
Tissue that contracts for movement
6
Hottest planet in solar system
9
Preserved remains of ancient life