Across
1
Glass that splits light into spectrum
3
Curved glass that refracts light
5
Disturbance that transfers energy
7
Icy body with a tail near the sun
10
Unit of heredity
Down
2
Hottest planet in solar system
4
Tissue that contracts for movement
6
Measure of matter in an object
8
Element found in all living things
9
Basic unit of life