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 ) a y) e tt y le iv al nt co om yc V sd ou brand of the paper towel, while the Y-axis S ec ra on B R K c l( (E indicates the time, in seconds, it takes for ca al ar c ar M M 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.
Pages to are hidden for
"Lab Report - The Search for the Best Paper Towel"Please download to view full document