We worked on the lunar soil it is where your car you built goes to the sand/regolith and puts the sand in a bucket and brings it back to the base.
Regolith was formed over a billions of years ago by constant meteorites.
I built it by putting a huge backboard made out of carboard and duck tape and Lego on the bottom to attach to the robot.
A 3d builder built this scope that picks up sand/regolith.
I programmed it to go forward and scope the sand/regolith and put it in the bucket.
And when we were doing a program the motor sounded like "click" "click" "click" "click" so we had to stop doing it.