Our Solar System Sensory Tub

It's a long sensory tub this time; it stretches all the way down the hall.

In the tub we have outer space (black beans) on one side and rocky planetary surface (aquarium gravel) on the other.  I added a Space Toob and Solar System and some bristle blocks to make space stations.

Then I stretched a solar system model along the hall.  The sizes of the planets (and sun which is the big, red outline) are to scale with each other, and the distances between the planets along the "space line" are to scale with each other, but the sizes and distances are in vastly different scales.