Choose an appropriate and usable scale. Set up a scale model using their calculated distances. Relate actual distances to difficulties in discovering and exploring the planets. Most representations of the solar system use one scale for the size of planets and a different scale for the distance between them. By producing a model with just one scale, students can get a much more accurate idea of the true size of the solar system and the difficulties of space exploration.
Students design and set up an outdoor solar system model using just one scale.
These models will tend to be very large. A kilometer in length is not unusual. The model is then viewed from different positions to see how hard it is to see other planets from the Earth, how small the sun looks from the outer planets, etc. 2 class periods total. For best results, each student should have a specific research and calculation assignment.