Sometimes Stephen will see his pinwheel spinning, but other times it does not spin. Which statement best explains what makes his pinwheel spin? a The Sun heats up the pinwheel, causing it to turn. b Energy from the wind pushes on the wheel and makes the pinwheel move. c The colors on the wheel repel one another, causing it to turn. d Energy from the ground shakes the wheel and makes the pinwheel move.

b Energy from the wind pushes on the wheel and makes the pinwheel move.