Across
1
Unit of energy
4
Glass that splits light into spectrum
5
Hottest planet in solar system
8
Naturally occurring inorganic solid
Down
2
Unit of heredity
3
Magnetic metallic element
6
Nerve cell in the brain
7
Second lightest element
Unit of energy
Glass that splits light into spectrum
Hottest planet in solar system
Naturally occurring inorganic solid
Unit of heredity
Magnetic metallic element
Nerve cell in the brain
Second lightest element