In science class, we were put in pairs and told to make a racecar using a spool and a rubber band to power the car. here are the first two ideas:

#1:

we wanted to make it look like a real car. although, we had no idea how to power it with a rubber band

#2:

this one my partner was just playing around with our materials. when he accidentally made an awesome slingshot!

Prototype #1:

we could not test this one because we could still not get it to work. the weel wouldn’t roll, and we still had no idea how to power it.

Prototype #2:

this one worked very well! although, we were not applying to the rules because we were supposed to make a car. this is a slingshot. but we were still allowed to test it.

1. What do you like about your initial design?

I liked both of our designs. I like design #1 because of how cute it looks. I like design #2 because of how effective it is and how fun it is to launch.
2. What has been challenging about the initial design?

Designing #1 was probably the most difficult because we could still not get it to work. The weel wouldn’t roll, and we still had no idea how to power it with a rubber band.

3. How well did your racer perform in the first race? Did it go far? Fast?

I think that #2 performed really well. It was the fastest and it went the farthest distance in the class. I cannot give the exact measurements because we do not have them at the moment.
4. How will you modify your design for the second race? What variables do you feel will affect how far and fast the racer goes? Why?

I really hope we can get #1 to work. since #2 is technically not allowed, I really hope that I can get the weel to work. Maybe we could use the slingshot idea to power the car? also, I wanna make our racer look like a mini car.
5. What have been your strengths and challenges during the design process?

I and my partner’s strengths were coming up with good ideas. although some of them did not work, I think they have great potential.
6. What questions do you have?

how am I going to get the weel to work for design #1????