Paper Towel Lab

Bounty seems to be more absorbent because it has tight stitching, which creates a larger surface area than other paper towel brands. This means that there is a larger amount of cellulose fibers in Bounty paper towels. Bounty is also thicker and softer than both the Sparkle and Dutch Fork High School paper towels, which are major factors that play into the absorbency of a paper towel. Based on this research the hypothesis was if Bounty, Sparkle, and Dutch Fork High School paper towels are tested for water absorbency, then Bounty will absorb the most water since it has the greatest absorbency factors out of the three brands. There is constantly new paper towels being created and promising that they are more absorbent than others, but the only way people will know is by testing them out, which is why this experiment was conducted. In this experiment, the independent variable is the different brands of paper towel. The dependent variable is the amount of water each brand of paper towel absorbs in thirty seconds. The constant variables are the amount of water the paper towels are in, the amount of time the paper towels are in the water, the amount of time the paper towels are allowed to drip after being taken out of the water, and the tool used to measure the amount of water

Paper towels are known for their absorbency. These towels are made of paper and are attended to be used once. Paper towels are used for cleaning and dry a variety of surfaces. During this lab, my group observed several brands of paper towels. Those brands included our school paper towels, Viva Vantage, Best Choice, and Bounty Basic. Our school paper towels were around 800 square feet long, had an average cost per roll of $5.25, and was single ply. This paper towel was brown in color, rough in texture, and dotted in pattern. Viva Vantage had 59 sheets per roll, had an average cost per roll of $2.09, and was single ply. The Viva Vantage was soft in texture, white in color, and had to apparent pattern. Best Choice had 111 sheets per roll, had

In the beginning of lab, we were advised to obtain a nutrient agar petri plate, which is used for the cultivation of microbes supporting growth of non-fastidious organisms. Since it contains many nutrients, a wide variety of bacteria and fungi can grow. Taking the plate,

The purpose of this experiment is to find out which brand of paper towel, Decorator or

Every cell transports materials in and out throught something called a membrane. There are many different methods of transport in the cell Saccharomyces cerevisiae (Serrano, 1977) We want to know does adding higher concentrations of azide more effectively block dye transport? We tested the transport of dye in yeast cells with a metabolic inhibitor. When we did this we showed no difference in the absorbance between different azide solutions, and our control. From this we concluded that azide has no effect on the transport through a yeast cell membrane.

Introduction: The purpose of this lab was to learn the proper techniques of roasting, smelting, and volumetric analysis to determine an unknown sample of copper mineral.

Purpose: The purpose of the lab was identify the perpetrator that stole 13 digital balance from the driscoll labs. To find out who it is we have to identify the unknown white substance and find which pen ink has a similar ink formula to the ink found in the note that were left behind the perpetrator. Background information: In order to find out what the unknown white substance are and which pen was used for the note we have to do several tests that test their properties in order to identify them.

Stethoscope is one of the most commonly used medical devices on a clinical setting, the environment of which is often represented a potential vector for hospital acquired infections. Scholars highlights that the sterilization of invasive equipments and the disinfection of any kind of devices before the interventions are generally ignored (Kilic et al., 2011). Among those devices, stethoscope is the widely-used equipment with the most possibility of contamination of transmitted organism. Researchers emphasize that the increasing proliferation of infection required diligent hygiene of both hands and instruments between patients to reduce hospital acquired infections (Shaw and Cooper, 2014). Therefore, a survey is being conducted with a brief nurse-directed questionnaire to review perceived reasons for stethoscope antisepsis non-compliance and stethoscope antisepsis compliance. The purpose of this project is to improve compliance with stethoscope care before and after patient contact on the Acute Medical and Progressive Care Unit (D6/5) at University Hospital in Madison, Wisconsin. The following

INT Task 3: Toilet Paper Absorbency Project Design Plan Problem Statement: Absorbency of toilet paper is found in many aspects when it comes to choosing the right toilet paper. When choosing toilet paper people base their decisions on many factors. Those factors include price, name brand, availability, quantity for the price, and even media deliverance (i.e. commercials) of toilet paper. Although these factors are of key importance, what about the absorbency of toilet paper? This experiment is conducted in the hopes of showing three different levels of absorbency. Testable Question: How does the saturation of three different brands of toilet paper compare? Literature Review: Based off two previous scientific experiments that were found,

This experiment was conducted at Horry Georgetown Technical College in South Carolina, on January 30, 2018. Each group conducted two experiments to determine the strength and absorbency of Great Value Brand paper towels and Sparkle. To test the strength of each paper towel brand, metal weights (each measuring 28.88g) were placed onto the center of the paper towel after it was wet with 10mL of water. Both paper towel brands were lifted off the table surface with various weights until the paper towel ripped. The data recorded in grams is placed on a table (Figure ---) for each group so that the experiment is completed and recorded a total of six times.

The hand towels are generally measured by their tissue density. Hand towels that weigh less and are thinner are generally less expensive because they dress more quickly. If you are going to use a daily working hand towels, you may prefer a heavier towel that will last for several washes, but remember that a heavier towel will absorb more moisture and could easily harbor bacteria if they are not properly washed and Dried.

From each height, drop 1 drop of water in 3 different places on the paper so that the splatters do not overlap.

There are also some other common properties that are transitions from one state to another, such as vaporization, this is the process by which a liquid or in some cases a solid that can change into a gas. Evaporation is a similar form of vaporization. However, evaporation is defined as the process by which particles escape from the surface of a non boiling liquid and enter the gas state. Some lab experiments can be conducted to actually see the effects of evaporation. Like the liquid bromine lab where you add a small amount of liquid bromine into a bottle, and within a few minutes, the air above the liquid bromine will turn into a brownish-red color because some of the bromine molecules escaped from the surface of the liquid. These molecules then became gas molecules, or bromine

The large problem in my experiment was that I should have put the hydrogen peroxide with my parsnips. In theory, it would have bubbled, therefore would have been a good measurement within the experiment. Forming a new hypothesis, if acidity is added to parsnips, through the use of pH, then enzyme activity will be affected because a difference in PH alters enzyme activity and the rate of reaction. The rate of reaction would have been measured using the peroxide as it bubbled because a substrate is needed. The best way to measure would be after every minute, for 10 minutes. For instance, after one minute of reaction time, the amount of bubbles would be measured and so on for the next 10 minutes of every pH level (2,3,4,5,8,9,10,11). When watching

Laboratories across the United States have many different ways of operating in order to collect sufficient and precise data and make adequate conclusions.  In order for a laboratory to run smoothly and collect good data, the lab must stay clean and sterile. Through Dr. Williams section of LB 133, Introduction to History, Philosophy and Sociology of Science, I had the opportunity to complete a two hour non-participant, unstructured, naturalistic observation at the MSU-DOE Plant Research Laboratory.  After extensive research of multiple laboratories hosting studies on Michigan State University campus, the laboratory I chose was Dr. Christoph Benning’s plant lipid research laboratory study.  Benning’s lab had a strong tie to the STS concept of good data.