Make it to scale
Make planets in the solar system craft of your choice to scale. Doing so will really show the solar system in a more accurate light. It may be easiest to make sizes relative to the size of the earth. Here are some facts to get you started:
The Sun is over 100 times larger than the Earth.
Mercury is roughly one third (.38) of the size of Earth.Â
Venus is just a bit smaller than Earth.Â About 5% smaller.
Mars is about half the size of the Earth.Â Â
Jupiter is 11 times the size of the Earth.
Saturn is about 9.5 times the size of the Earth.
Uranus is just over 4 times the size of the Earth.
Neptune is just under 4 times the size of the Earth.
Pluto is about 20% the size of the Earth or about half of the size of Mercury.