Not to scale
This makes our Solar System seem WAY more… eh… I want to say interesting, but our Solar System is relatively interesting… to us I mean, since it gave us life and all that. (Probably a mediocre system in a galactic sense) But this way of displaying it makes it seem cooler somehow.
You’d need a couple more Styrofoam balls for your school project diorama though. Which is probably why they stick to the ‘main’ celestial bodies. Ex Pluto. Obviously. Still a sore spot for me. Although apparently the new Director of NASA disagrees and says it should be a planet. I wish you good luck in your battle against the Pluto-denialists.