Aim: To make the most efficient wind racer which would either go the furthest or looks the most creative.
Method:
- Gather all your equipment
- Set up your trolley and your bamboo stick, by placing the stick in the hole.
- Cut a plastic bag into a partially large rectangle a size that would suit the stick.
- Repeat with newspaper or paper.
- Tape your first rectangle to the rod.
- Repeat with your other material.
- After use sticks to create a structure for the sail, we used skewers but you can use another material. - Since we used a whole newspaper page, we stuck 2 skewers together from the ends. Making it longer.
- Stick one pair at the top and another one at the bottom
- Depending on the size of your sail and rod place one or two pairs in the middle too.
- After, make sure everything is secure by using tape in places that are weak.
- Finally, decorate to make the appearance look more appealing.
Equipment: Newspaper, plastic bag, tape, trolley, bamboo/metal rod, skewers.
Result: 
Discussion: Pull and friction were acting for the push and stop, but 2 more forces are pushing to each other to not fly the wind racer up or pulled down in the center of the earth. Gravity, and support.
Conclusion: I thought at first the this won't work at all, but when we tried it out is actually pretty cool to do, and it definitely works.
