2. Introduction
This project involves linear equations and linear graphs. In this project we tested how many pennies it
will take to break a certain number of spaghetti strands and then we predicted, based on our data, how
many pennies would break 12 strands. We graphed our results using a line of best fit.
In this photo,
we’re measuring
how many coins
will it take to break
12 strands
3. Steps
1) First we put 2 supports with a 20 cm gap.
2) Then we start with one strand of spaghetti, then each time the strand breaks add one more. we
stopped at 7 strands and estimate how many pennies would be needed to break 12 strands
3) We made ordered pairs of out of the number of strands in the bridge and # of coins to break it.
4. Prediction
My prediction for how many pennies it will take to break the 12 strands is about, 119 coins. i used my graph and made
a line of best fit to make my prediction. Based on my fitted line my prediction was not an outlier compared to the results
of the experiment. According to the graph, each group of strands broke when about 7-10 coins were added.
5. Chart
Based on my line of best fit, after each time we broke the strands we recorded the data.
1 strand 8 coins
2 strands 22 coins
3 strands 25 coins
4 strands 42 coins
5 strands 52 coins
6 strands 61 coins
7 strands 68 coins
6. Results
In this graph, I estimated that it would take
119 coins to break 12 strands of spaghetti.
My prediction was incorrect since 12
strands of spaghetti broke with 132 coins in
the cup.
7. Summary
The 12 strands of spaghetti broke with 132 coins in the cup, however the experiment may have a few flaws. Since the
climate of the room was a bit moist when we experimented it the spaghetti strands mad had been more moist which
made them more flexible. There could have also been a flaw in counting the number of coins since whoever was putting
the coins would put them in groups.
