Across
1
Smallest unit of an element
3
Blocking of light by a celestial body
6
Gas form of a liquid
7
Disturbance that transfers energy
8
Particle of light
11
Precious yellow metallic element
Down
2
Positive particle in nucleus
4
Tectonic landmass section
5
Amplified beam of light
9
Molten rock beneath Earth surface
10
Magnetic metallic element