Across
1
Push or pull on an object
4
Glass that splits light into spectrum
5
Path of a planet around the sun
7
Preserved remains of ancient life
9
Disturbance that transfers energy
10
Tissue that contracts for movement
Down
2
Chemical element in table salt
3
Substance with pH above 7
6
Unit of electric potential
8
Hottest planet in solar system
11
Curved glass that refracts light