Across
1
Absolute temperature scale unit
4
Basic unit of life
5
Compound containing oxygen
7
Path of a planet around the sun
10
Precious yellow metallic element
12
Amplified beam of light
13
Our home planet
Down
2
Particle of light
3
Tectonic landmass section
6
Preserved remains of ancient life
8
Blocking of light by a celestial body
9
Magnetic metallic element
11
Positive particle in nucleus
14
Element found in all living things