Relay Race based on distance between sun and planets
Cubs stand in line at the sun Mark ready to launch from the sun to visit the planet and back
each member takes turn by taking the number of steps (or set distance) required to reach that planet and then head back for the next member's turn to visit the next planet per the required steps (or set distance) ...
fist team to visit all the planets wins...
Distance / Steps required per planet:
Mercury - 2
Venus - 5
Earth - 7
Mars - 14
Jupiter - 25
Satrun - 50
Uranus - 100
Neptune - 200