Lab Report - The Search for the Best Paper Towel by DramasNYC

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									Title – The Search for the Best Paper Towel
1) Purpose – How does the texture of the paper towel affect how fast the water is absorbed?
2) Research / Background Information –
       Consumer Reports, Dec2009, Vol. 74 Issue 12, p8-9, 2p, 1 Color Photograph, 1 Chart
       Paper towels come in different shapes, sizes, and texture. Some paper towels are more durable
and absorbent than others. In addition, paper towels come in different prices, and occasionally the prices
of some paper towel brands are skyrocketing high compared to more inexpensive and durable paper
towel brands. According to Consumer Report’s findings, recycled paper towels, soft paper towels, and
rough paper towels vary from excellent to poor; some paper towels were more absorbent than others
and some were stronger than others. Bounty’s Extra Soft proved to be more absorbent and stronger, but
more expensive than others. However, Consumer Reports proved that Bounty’s Extra Soft is the best
paper towel choice in the market.

3) Hypothesis – If the texture of the paper towel is rough, then it will take longer for the paper towel to
absorb the water, because it takes time for the water to penetrate the layers of a rough paper towel.
4) Experiment –
       A. Materials
                 Stopwatch
                 Graduated Cylinder
                 Rolls of Paper Towel (Bounty, Viva, Marcal – Economy, Marcal – Recycle, Krasdale,
                  Scott)
       B. Procedure
              1. Using a graduated cylinder, fill six cups with the same amount of water, approximately
                  40 mL per cup.
              2. Cut each paper towel to maintain its length and width (20 cm by 20 cm)
              3. Pour the water onto a flat surface
              4. Place the paper towel onto the wet surface
              5. Use the stopwatch to measure how long it takes for the water to penetrate onto the
                  paper towel
              6. Record the data
              7. Repeat steps 3 – 6 until all paper towels have been tested and the data has been
                  recorded.
5) Observations / Data / Results –

Paper Towel Brand                     Texture                                                Time (seconds)
Bounty                                Bumpy, Double-Layered                                  35.97
Viva                                  Very Soft                                              66.66
Marcal (Economy)                      Medium Rough, Double-Layered                           36.90
Marcal (Recycle)                      Rough, Double-Layered                                  20.25
Krasdale                              Medium Soft, Bumpy                                     28.19
Scott                                 Bumpy, Rough                                           36.00

6) Analysis of Data – The data is showing
                                                                        Paper Towel's Water Absorption Time
the different absorption times for different
paper towel brands. The chart is listing the                       70
                                                  Time (seconds)   60
time, in seconds, that it took each brand of                       50

paper towel to absorb the water. The bar                           40
                                                                   30
graph is comparing the different time, in                          20
                                                                   10
seconds, it takes each paper towel to
                                                                    0
absorb the water. The X-axis indicates the




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the paper towel to absorb the water.                                                     Paper Towel's Brand


7) Conclusion
   1. The data does not support the hypothesis because the hypothesis stated that the absorption time
        for rough paper towel will take longer. However, according to the initial results, the absorption
        time for soft paper towel takes longer to soak up.
   2. The data shows that the smoother paper towel brands took a longer time to absorb water than the
        rougher paper towel brands. For instance, the Viva, which was a very soft paper towel, absorbed
        40 mL of water at 66.66 seconds. However, the Bounty, which was a very bumpy and double-
        layered paper towel, absorbed 40 mL at a more rapid 35.97 seconds. The hypothesis stated that
        the rougher paper towel would take longer to absorb the water. However, the initial results
        revealed that the soft paper towel brands took longer to absorb. In addition, the softer paper towel
        contained thicker layers than the rough paper towel, which required more time for the water to
        absorb the layers of the softer paper towel. In conclusion, the Marcal (Recycle) absorbed the
        fastest, and is therefore, the best paper towel choice.

								
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