Question

explain why the earth spins like a top and uranus rolls like a ball.

Answer 1

earth spins like a top because its axis is slightly tilted to its orbit
on other hand uranus axis is tilted to large angle hence it appearsto  rotate like a ball

Answer 2

Yes,actually..Uranus axis is tilted at an angle to the orbit hence while rotating earth appears to rotate like top it rotates like a ball..