Date ________________ Hr. ___ Name ___________________________________________
TOILET PAPER LAB REPORT
(entire report must be computer-generated – all headings must be used as
written, in this exact order)
Purpose:
The reason we did this lab was to __________________________________________________________________
_________________________________________________________________________________________________________
Hypothesis:
If ____________________________________________, then ___________________________________________________
Materials:
(labeled pictures of ALL materials used)
Procedure: (copy this exact procedure)
1. Place one sheet of paper A over the top of the beaker. Use the rubber band to
firmly hold the paper tight.
2. Use a pipet to add exactly 7 drops of water in the center of the paper. Wait 10
seconds to allow the water to spread out evenly.
3. Gently place the pennies, one at a time, onto the center of the paper. Do not drop
the pennies.
4. Record the number of pennies required to break the paper.
5. Repeat this experiment with paper A for a total of 3 trials.
6. Repeat the entire procedure steps 1-5 for the three other brands (paper B, C and
D).
The independent variable is ______________________________________________________________________.
The dependent variable is ________________________________________________________________________.
Three (3) constants are ___________________________________________________________________________.
A control for this experiment is __________________________________________________________________.
Observations: (include a table like this with your data)
Number of Pennies to break TP
Trial 1
Trial 2
Trial 3
Paper
# of pennies
Paper-A
Paper-B
Paper-C
Paper-D
# of pennies
# of pennies
Miscellaneous Observations:
(describe events, incidents or reasons why your procedure may not have been perfect.)
Calculations:
(show ALL calculations for average number of pennies for EACH brand of toilet paper.)
Analysis: (include a table like this with your data)
Average # of pennies to break TP
Average
Paper
# of pennies
Paper-A
Paper-B
Paper-C
Paper-D
(Insert computer graph here -- use your averages to create a bar graph plotting the
independent variable on the X axis and the dependent variable on the Y axis.)
My hypothesis was correct/incorrect because __________________________________________
_______________________________________________________________________________________________.
Discussion:
(Identify at least 2 ways you could improve the reliability and/or reproducibility of
your results. Do not include suggestions to follow the assigned procedure more
precisely. What new and different techniques would you suggest?)
Conclusion:
Toilet paper _____ took an average of _____ pennies to _______________________, so
_______________________________________________________________________________________________.
(Refer back to your purpose to finish your conclusion – did you accomplish what you
set out to do?)