The four inner planets have slower orbits, slower spin, no rings, and they are made of rock and metal. The four outer planets have faster orbits and spins, a composition of gases and liquids, numerous moons, and rings. The outer planets are made of hydrogen and helium, so they are called gas giants.
Sun: stands at the edge of the area
Mercury = 1 step from sun
Venus = 2 steps from sun
Earth = 2.5 steps from sun
Mars = 4 steps from sun
Asteroid belt = 8 steps from sun
Jupiter = 13 steps from sun
Saturn = 24 steps from sun
Uranus = 49 steps from sun
Neptune = 76 steps from sun
Kuiper belt = 100 steps from sun
