The Scientific Method

advertisement
Problem Statement
Which paper towel is the
strongest?
Variables
Constant Variables:
Manipulated Variable:
Water
Bounty, Bounty Basic,
Brawny, Sparkle, School,
Publix
Pennies
trays
Responding Variable:
The amount of pennies the
paper towels hold
Hypothesis
If we test to see which
paper towel is the
strongest, then Brawny
will be the strongest.
Materials
Brawny
Trays
Sparkle
Water
Bounty
Pennies
Bounty Basic
School
Publix
Procedures
1. Two people hold each end of the paper towel.
2. Gently and quickly place the pennies on the
paper towel until it breaks.
3. Do not include the last penny that breaks the
paper towel.
4. Repeat the experiment 2 more times and
record the data.
Data
Number of Pennies
Trial 1
Trial 2
Trial 3
Average
Bounty
Basic
254
348
240
281
Sparkle
214
237
200
217
School
91
77
88
85
Bounty
171
155
254
193
Publix
64
74
23
54
Brawny
212
305
365
294
400
350
Number of pennies
300
250
200
150
100
50
0
Bounty Basic
Sparkle
school
Bounty
Brands of Paper Towels
Trial 1
Trial 2
Trial 3
Publix
Brawny
Results
The results showed that the paper towel
brand that held the least amount of pennies
was Publix which averaged 54 pennies. Next
was school with 85, Bounty with 193, Sparkle
with 217, and Bounty Basic with 281. Brawny
held the most with an average of 294 pennies.
Conclusion
Our hypothesis was supported by this
experiment. Brawny held the most pennies. It
is possible that some of us may have
miscounted. Some groups counted much faster
than others so perhaps that affected the results.
Maybe we could repeat the experiment to see if
we get the same results. We were surprised that
Bounty came in third and that Publix held less
than the school.
Application
This experiment applies to daily life because
now we know which paper towel is the
strongest. We can tell our parents which one to
buy from the grocery store. We wonder what
would happen if we used quarters or legos, or if
we all counted at the same pace.
Bibliography
"Consumer Reports: Best Paper Towels." YouTube. KJRH -TV | Tulsa |
Channel 2, 3 Jan. 2012. Web. 02 Nov. 2015.
<https://www.youtube.com/watch?v=igM7iFV5Q5g>.
"Strongest Paper Towel." Strongest Paper Towel. N.p., n.d. Web. 02 Nov.
2015. <http://strongestpapertowel.weebly.com/>.
"Consumer Reports Magazine: December 2009." Paper Towel Test:
Consumer Reports. Consumer Reports Magazine, Dec. 2009. Web. 17
Nov. 2015. <http://www.consumerreports.org/cro/magazinearchive/december-2009/home-garden/papertowels/overview/paper-towels-ov.htm>.
Abstract
The purpose of our project was to find out which
paper towel was the strongest. We were curious. We
thought that Brawny would be the strongest. We used
pennies and water to test the strength of each paper
towel. Brawny was the strongest. Publix was the
weakest. Our hypothesis was correct because Brawny
won. From now on we will buy Brawny because it’s the
strongest of all the paper towels we tested. We could
improve our project by making sure that everyone
counts the pennies at the same pace.
Download