We had to make a car out of legos and a motor that would go straight and pull a trailer
The science concepts we used were momentum and friction
Legos
hot glue
batteries
motor
first we made a base and then hot glued the motor to it then we added the tires and batteries
we did a lot better then I thought we would we placed 4th and 10 minutes before we tested are car wouldn't move
i would make one continuous axel instead of just one wheelÂ
the only thing i would change is have 2 motors instead of one