Expert answer:Mythbusters Science “Ice Bullet, Exploding Toile

  

Solved by verified expert:The Myth:If caught in a rainstorm, you will stay drier if by running for shelter, instead of walking.Experimental Setup: The Mythbusters set up a controlled experiment to compare the amount of rainwater absorbed by walking versus running a set distance.
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Name:
Mythbusters Science
Season 1, Episode 1
“Ice Bullet, Exploding Toilet, Who Gets Wetter”
The Myth: If caught in a rainstorm, you will stay drier if by running for shelter, instead of walking.
Experimental Setup: The Mythbusters set up a controlled experiment to compare the amount of
rainwater absorbed by walking versus running a set distance.
Background Questions:
(Answer before watching the episode!)
1. Define, in your own words, each of these steps of the scientific method: (2 points)
Question –
Hypothesis –
Experiment –
Analysis –
Conclusion –
2. The question to be answered by this segment of Mythbusters is “Do you get wetter by walking or
running in the rain?” Given this question, what hypothesis do you have? HINT: Remember to
provide support when stating your hypothesis! (2 points)
3. What is the independent variable to be tested in this experiment? (2 points)
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4. What is the dependent variable to be measured in this experiment? (2 points)
5. A controlled experiment such as this one always has an experimental group and a control group.
What is the difference between the two? (2 points)
The control group…
The experimental group…
Application Questions:
(Answer after watching the episode — http://www.discovery.com/tv-shows/mythbusters/videos/running-in-therain-minimyth/)
6. The goal of a controlled experiment is to only alter the variable that is to be tested, leaving all
others constant. What variables do the Mythbusters account for in their experimental design?
List five. (2 points)
_____________________________________________
_____________________________________________
_____________________________________________
_____________________________________________
_____________________________________________
7. Adam and Jamie each did 4 trials: walking without wind, running without wind, walking with
wind, and running with wind. Do you think this is enough data? Explain how sample size can
affect the outcome of an experiment. (2 points)
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Name:
8. This is the data table based on the Mythbusters’ results. Calculate the amount of water absorbed
in each trial. (2 points)
Trial
Wind
Time (s)
Initial Mass
of Suit (g)
Final Mass
of Suit (g)
Adam walk
No
18.28
757
785
Jamie walk
No
17.84
757
790
Adam run
No
7.06
757
799
Jamie run
No
6.59
757
793
Adam walk
Yes
17.40
757
789
Jamie walk
Yes
17.56
757
788
Adam run
Yes
6.98
757
801
Jamie run
Yes
6.51
757
790
Water
Absorbed (g)
9. Calculate the average amount of water absorbed in the running and walking trials: (2 points)
Avg. Water Absorbed (Running) =
Avg. Water Absorbed (Walking) =
10. Based on the data recorded in the table above, generate a scatterplot graph. Mark the walking
trials on the graph with an “x”, and the running trials with an “o”. The independent variable
should go on the x-axis, and the dependent variable on the y-axis. Label both axes! (4 points)
**NOTE: Feel free to print, complete the graphs, and scan and upload these pages when you
submit your assignment. Alternatively, you may use computer software to complete questions
10-11 and/or submit via a separate file (such as Excel).
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11. Next, generate a bar graph based on the average water absorbed running and walking. (4 points)
12. What conclusion did the Mythbusters make as a result of this experiment? Do you support their
conclusion? Why or why not? (4 points)
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