Across
1
Basic unit of life
4
Preserved remains of ancient life
5
Natural satellite of Earth
6
Particle of light
Down
2
Unit of energy
3
Blocking of light by a celestial body
6
Glass that splits light into spectrum
7
Tectonic landmass section
Basic unit of life
Preserved remains of ancient life
Natural satellite of Earth
Particle of light
Unit of energy
Blocking of light by a celestial body
Glass that splits light into spectrum
Tectonic landmass section