This test also took into account for the price of each role. (http://wax. Dalliance. Com) Viva paper towels are made of 100% virgin fiber(http://www. Vitiations. Com), while Bounty is made of virgin wood pulp. (http://www. Bounteously. Com) Brawny is made of domestic materials from Oregon, Louisiana and Florida. (http://war. Brownstone’s. Com) In terms of popularity, Bounty, Brawny and Viva are the most known brands and are used commonly in kitchens. Hypothesis: For this project, I needed 3 different hypothesis. For the absorbency, 1 for durability and 1 for the over best quality paper towel.
My first one, for absorbency, was: If the thickness of the paper towel affects the amount of water the towel takes in, then the Bounty, will absorb more. This sounds the most sensible because the thicker the paper towel, the more space there is to absorb the water. For durability, I hypothesized: If the material of the paper towel affects the durability of the towel, then the weaker material will not be as strong. I said this because cheaper toilet paper, suggests poorer quality, meaning that the trials won’t be as strong or durable as another, more expensive one.
My last hypothesis put together the two to predict the overall highest quality paper towel. If the money put into making the paper towel affects the overall quality, then the cheaper paper towels would not be the best choice as the “better picker upper”. Methods: The first method I will explain is the test I used to find the most absorbent paper towel. First, you need to make sure you have all the materials needed. The next step is to fill a graduated cylinder with exactly 100 ml of tap water. Once filled, fold the 4 by 4 inch paper towel, hotdogs style so it can fit into the graduated cylinder.
With a pair of tweezers, grip the paper towel at the end and dip it into the graduated cylinder for exactly 15 seconds, taking care not to let the paper towel fall as it will take longer than 15 seconds to get out. After the 15 seconds hold the wet paper towel over the graduated cylinder and allow the water to stop dripping or for it to stop dripping as much. Once you have finished that, place the paper towel somewhere or dispose of it. Make sure you have 2 more ex. Inch paper towel pieces so you can have more than one trial to get accurate results.
Next, find the amount of water left but make sure you look at the bottom of the meniscus for an accurate measurement. Lastly,calculate the amount of water the paper towel soaked up using this equation: Original amount of water – Amount of water left = The amount of water soaked up. Do the same for the other paper towel brands. Record your data. For durability, I used a different method. Just like the other procedure, you need to make sure you have all materials. First, get a xx CM paper towel and tape ACH end length-wise to the sides of the bin.
Make sure you tape it so that the surface of the paper towel is straight and flat. Try to maintain a constant tension. With an eye dropper, drop some water onto the paper towel. Don’t make it too wet so that the towel doesn’t rip instantly or enough so it would be easier to rip it by putting slight pressure onto it. Wait thirty seconds before moving on. With one washer, place that gently onto the wet paper towel. Do not drop the washer onto it. If the paper towel does not rip, wait three seconds to gently place another one. Continue doing the same thing until eventually, the paper towel rips.
At this occurrence, immediately use a weighing scale to find the total weight the paper towel could hold. Do the same for the other paper towel brands and record your data. Results: Chart 1 The chart shows the amount of water used (ml), the amount that was left (ml) and the amount absorbed (ml). Each column is labeled by the paper towel brand. Figure 1 This graph visually shows which paper towel absorbed the most water. Brawny, absorbing the most water, absorbed 8 ml of water. Industrial absorbed the least. Chart 2 The chart shows the maximum weight put onto the paper towel and whether or not it broke.
This shows that industrial did not break. Figure 2 The graph above visually shows the most weight put on the paper towel. Homophones, in the end, appeared to be the weakest. Conclusion: After the two tests decided whether to support or refute my hypotheses. We’ll start with my first one. If the thickness of the paper towel impacts the amount of water absorbed, then the thickest paper towel, which is Bounty will absorb the most water. Chose to refute my hypothesis for absorbency because in the end, bounty being the thickest paper towel, failed to absorb as much as Brawny.
Brawny, absorbed 80% of the total amount whilst Bounty only absorbed 70% of the original amount. A source of error would be the humidity of the air. The humidity could have affected how much water the paper towels take in. Here in Colorado we would have a different result than in Florida because of the humidity difference. Humidity is a measure of how much water is in the air. If there is more water in he air, it will want to flow down its concentration gradient, (so there is equal concentration) and into the paper towel.
That then increases the dampness of the paper towel. So, if one might put more water onto the paper towel to test for absorbency it will appear to absorb less because it would had already absorbed water from the humid air. As an additional experiment you could change more variables. For example, try changing the temperature of the air around it or testing this in a different, more humid environment. If the material of the paper towel affects the durability, then bounty, the stronger trial will be more durable. For this hypothesis, I chose to refute it.
Just like the absorbency test, Bounty did not come in first for durability. Industrial ended up being the one to not break even when there was 505. 4 grams of weight on it. An error I noticed in the lab was that some paper towels ended up getting damper than the others. This caused it to be weaker so that the weights would rip it faster. Another possible error could have been how tightly bound the paper towel was to the edges of the bin. Some could have been looser creating a concave arc. Others could have been a completely flat surface.