All rights reserved. The Problem: Discovering which paper towel brand will soak up the most water. You've managed to spill cola all over your books and the floor while you were studying in the living room. Start by cutting your paper towels into three inch square pieces. study For paper towels to effective,they must be relatively durable while wet. the Research and Development building of the Brown Company in Berlin, Massachusetts.
What evidence do you expect to see to prove your hypothesis? When it has completely soaked in, add another drop. - Science Fair Project, Does Chewing Gum Help You Concentrate? The water attaches to the cellulose and hangs out in the air space. | {{course.flashcardSetCount}} Cut each paper towel sheet to the same size and RECORD the size in your notebook. As you struggle and use half the roll of paper towels for one soda, you wonder if it would have been worth the money to get the more expensive brand. &. Video conferencing best practices: Tips to make meeting online even better If you go too fast, you might add more water than the paper towel can hold, but not notice. Log in or sign up to add this lesson to a Custom Course. To clean it up, you go grab some paper towels. money buying the generic brand of paper towel. Durability of Wet Paper Towels Purpose: Find the strongest paper towel brand when wet. Fold each paper towel in half 4 times.
Now that you’ve completed the lab, what improvements might you make if you were to do this again? How do we determine which towel does? Fill your 1000 ml beaker with water. Thinner paper towels have less air space in between their cellulose molecules and thus hold less water. A paper towel is an absorbent towel made from tissue paper instead of cloth. IB Curriculum Content: The IB curriculum is Topic 2: Molecular Biology, Section 2.2: Water. We'll not only see which ones will be best to clean up spills, but also understand how they work through scientific properties of water.
As you might have observed in your own experience with spills, fluffy paper towels usually hold the most water. The IB curriculum is Topic 2: Molecular Biology, Section 2.2: Water. courses that prepare you to earn This preview shows page 1 - 4 out of 9 pages. Paper Towel Absorption Lab PAGE 1 # & 4 7 8 9 S n o x Î Ù £ © Ç İ ú ÿ Why do you think that? Is There Too Much Technology in the Classroom? flashcard set{{course.flashcardSetCoun > 1 ? Paper Towel Absorption Lab. William E. Corbin, Henry Chase, and Harold Titus began experimenting with paper towels in the.
Which Nail Polish Lasts the Longest? Blog. Make sure you have three of each type, for a total of nine squares. Repeat this process until your paper towel can no longer hold anymore water. Water sticks to cellulose through the process of cohesion, where water molecules adhere to other molecules. Paper Towel Lab - The Effect of Various Paper Towel Brands on the Absorption of Water Audrey Song IB Biology HL The Effect of Various Paper Towel Brands, The Effect of Various Paper Towel Brands on the Absorption of Water. OBJECTIVES To design a controlled experiment to determine which brand of paper towel can hold the greatest amount of liquid.
Some of which include napkins, absorbing liquids, cleaning messes and more. Dip one brand of paper towel in the water for 30 seconds. 5. Slowly apply one drop of water to the first brand of paper towels. Then, average your number of drops for the three trials and record this number in your data table.
imaginable degree, area of On their lab sheets, students were asked to come up with a hypothesis. In this experiment, we're going to test the absorbency of different brands of paper towels. 4. You will be using all of your previous knowledge from your laboratory experiences to design and properly conduct a controlled experiment! Oh no! {{courseNav.course.topics.length}} chapters | These cellulose fibers are actually giant molecules that consist of many small molecules linked together. The purpose is to find out which paper towel brand is the most effective at absorbing water for. What factors contributed to paper towel absorbency. Be sure to use safe lab practices! that paper towel achieve 90% dryness in a matter of ten seconds, while hand dryers can take up.