Across
1
Unit of force
3
Measure of matter in an object
5
Unit of power
7
Amplified beam of light
8
Particle of light
Down
2
Icy body with a tail near the sun
3
Naturally occurring inorganic solid
4
Our home planet
6
Hottest planet in solar system
8
Tectonic landmass section
9
Magnetic metallic element
10
Compound containing oxygen
11
Unit of electric potential