Paper Towel Lab Report
Name: __________________________________ Period: _____________
Purpose: What is the best brand of paper towel (A, B, C, D, E, F, G, or H)
considering the variables of _____________________ and __________________?
Hypothesis: If a brand has ______________________________ , then it will be
more absorbent because ______________________________________________
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If a brand has __________________________, then it will be stronger than others
because ___________________________________________________________
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Overall, I predict that brand “ ________” will be the best.
Procedures:
Materials: 8 different brands of paper towels, water, various forms of mass
(gravel, weights, or marbles), pipette, 50 ml graduated cylinder, 50 ml plastic
beaker, triple beam balance, metric ruler, scissors, 2 small rubber bands, 1
large rubber band, plastic tub, plastic test tube with cap, data sheet, clock, and
______________________________________________________________
_____________________________________________________________?
Steps:
1) Label paper towels A, B, C, D, E, F, G, & H to eliminate potential bias.
Be sure to
keep your
variables
constant as
you design
investigatio
n!
2) Test for Wet Strength:
A)
B)
Etc.
Record results on data sheet.
Repeat steps ___- __ with all brands.
3) Test for Absorbency:
A)
B)
Etc.
Record results on data sheet.
Repeat steps ___- __ with all brands.
4) Score the paper towels by ranking them 1 to 8 (8 = best and 1 = least).
Divide the final point in ties. For example, two that are tied for best get only
7.5 points each instead of the full 8.
If you need more room use the back of this sheet; update the numbers of the steps. Don’t forget we will eventually do wet
strength and absorbency. Plan on making more steps later. Update your procedures if they change during testing!
Name: __________________________________
Period: _____________
Data: See separate, attached sheet.
Graph: See separate, attached sheet.
Conclusion:
After testing, and considering all of the data, I find brand __________ to be
the best choice. It scored ___________ points in strength and _________ points in
absorbency. The worst brand was ______________. (Continue by expanding
your thoughts: Our testing was good / bad . . . Variables? . . . In the future we
would . . . . etc.) _____________________________________________________
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Data Sheet:
Name (s): ____________________________________
Absorbency Data -
Brand:
A
B
C
D
E
F
G
H
Class Period: ___________
Date: __________
Results of Your Team’s Tests
Rank:
Wet Strength Data -
Brand:
A
B
C
D
E
F
G
H
Date: __________
Results of Your Team’s Tests
Rank: