Across
1
Blocking of light by a celestial body
6
Nerve cell in the brain
7
Push or pull on an object
8
Gas essential for breathing
Down
2
Unit of heredity
3
Particle of light
4
Unit of energy
5
Curved glass that refracts light
Blocking of light by a celestial body
Nerve cell in the brain
Push or pull on an object
Gas essential for breathing
Unit of heredity
Particle of light
Unit of energy
Curved glass that refracts light