1. Materials of Energy Car
Cotton string
Card board
Steel wire
Balsa
Cable Tie
Foam board
Wooden rod

2. Energy Car – basic assembly

3. Energy Car - Frame
Inclined frame by the different diameter of wheels

4. Energy Car - Frame

5. Energy Car - Frame The ways to level the frame: (Reduce the friction)
Card Board
Card Board

6. Energy Car - Frame

7. Energy Car - Frame

8. Energy Car – Wheels & Shafts
Straw

9. Energy Car – Wheels & Shafts

10. Energy Car – Wheels
Reinforce wheels

11. Energy Car – Wheels

12. Energy Car – Wheels

13. Energy Car – Wheels
Single wheel
straw
straw
straw

14. Energy Car

15. Energy Car