Empowering Student Innovation for a Clean Energy Future


Car name:


School name:

Buck Lake Elementary

Team members:

Abhay K, Lillian L, Zeke M

Grade level:

5th Grade

Car Specifications

  • Car Size: Length 275 mm Width 140 mm Height 285 mm
  • Weight: 378 grams
  • Wheel Size: 40.5 mm front wheel 40,5 mm back wheel
  • Pully size: 25 mm
  • List of Components:
  • 1 Pully $1.00
  • 2 Axles $1.00
  • 4 Wheels $ 3.00
  • 1 Balsa Wood Sheets $ 1.00
  • Motor $5.00
  • Solar panel $5.00
  • Battery $2.00
  • Paper Pot, wires, pipe cleaners, straw, Velcro stickers (Recycled)
  • Crayola marker as track wire holder (Recycled from old marker)
  • 2 Rubber bands $0.50
  • 1 Ping pong ball (from pay set)
  • Battery Holder $ 1.35
  • Succulent $2
  • Total Value $21.85


Items we used:

  • One 1/8 balsa wood
  • Pully
  • Four 1-inch thin plastic wheels
  • One long cardboard pole
  • Two Rubber bands
  • One Solar panel
  • One motor
  • Two wires
  • One battery holder
  • Hot glue
  • Velcro stickers
  • Quartz
  • Succulent
  • Paper cup
  • Pipe cleaners
  • Metal axel
  • Straws
  • Alligator clips
  • Tape
  • Crayola marker


Our theme is “Lord of the Rings”

What we are aiming for :

We are aiming for design and innovation


The rubber band was becoming too tight or too loose and so the car did not go straight and far. The actual problem was that the pully kept on wobbling, so even the new rubber bands that would fit perfectly would break. Another problem was that the car did not move straight, because the axel was not in a straight line.


Our solution was to hot glue the pully to the axel to make it rotate without wiggling and the rubber bands fitted perfectly. About the second problem, we adjusted the direction of the axel with many trials till it started moving straight

Things I am proud of

We are proud of our car design with the Lord of the Ring theme showing Mordor with Barad-dûr. We are also proud of our little succulent in the middle of the car which shows our love for the environment.


Inside Barad-dûr we kept some quarts that can make the tower buzz by putting the pipe cleaners in there.



2 thoughts on “Mordor

  • This is an incredible design. The name and the plant caught my attention right away! What a creative concept. Well done!


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