Building a Bridge
Problem:
Materials:
- 10 straws
- 2 A4 paper
- 1 Pipe Cleaner
- 1 cardboard roll
- 1 meter tape
- 1 meter string
- 1 Scissor
- 1 meter ruler
Procedure:
1.We measured the cardboard roll.
2.We then cut it and placed it around 1 A4 paper (base).
3.After that, we taped the cardboard rolls onto the A4 paper which is the base of the bridge.
4.We folded the second A4 paper horizontally at the ends of the paper to make the rails.
5.Then we connected 2 straws together for the rails. We did this two times.
6.We taped the rails on the both folded ends of the other A4 paper.
7.Then we got a straw and stuck it horizontally in the middle of the rails.
8. We attached a string that came down from the horizontal straws and the rails.
9. After we attached the string, we stuck some straws on the folds of the paper so it can support the span.
10. Then we stuck the paper onto the cardboard rolls.
11. We then tested our bridge by placing the 2 Duct tape on it. We timed it for 1 minute and it survived. It went a little over a minute.
Conclusion:
We conclude that in order for our bridge to be strong and sturdy, it needs a lot of support on the top and on the bottom. When there is pressure on the top, it helps make the bridge stronger.
By: Liezl, Amy and Losaline
Great work Amy. You enjoyed working with your buddies and able to write collaboratively the experiment and research. Your group was quiet and knew what each one were doing. Well done to your group!!
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