Sunlight and rain can cause a rainbow.
Bent light separates into the colors of a rainbow.
Sunlight and rain can cause bent light to separate into colors.
What can cause bent light to separate into colors?
[1] heat energy
[2] focusing a lens
[3] chemical changes
[4] flow of electrons
[5] electrically
[6] Electrical energy
[7] sunlight and rain
[8] energy of moving objects