Comparing Regular and Recycled Paper Towels for Strength and Absorbency There are many different brands of paper towels available to purchase in the marketplace. Many of these brands claim to be more absorbent or stronger than the other competitors. Paper towels, like other paper products, are made from wood fibers. Some are made with new materials taken directly from harvested trees which are processed into smaller fibers that can then be woven into the soft and absorbent material. However,
INTRODUCTION For this lab experiment, we were provided with three different seeds to choose from. Once we chose a seed, we had to determine which treatment we wanted to apply to the seed over the course of approximately ten days and observe how the seeds react; identify if germination occurs or not. In my group, we wanted to test how well carrot seeds would germinate when different percentages of a sugar solution were initially added to the seeds inside the Petri dishes. Carrots, scientifically
Saam Baharmand Period 5 Enzyme Rate of Catalase Aim - The aim of this lab is to measure the rate at which Catalase breaks down hydrogen peroxide into oxygen gas and water. We can do this by recording the time it takes for a piece of filter paper dipped in catalase to float in H202. Purpose – Enzymes are biological catalysts that help speed up a reaction without affecting it. There are several enzymes in our bodies such as Lactase, Amylase, Catalase, and Pepsin. These enzymes help our organs with
per beaker. Label each beaker: Elodea Black Light, Elodea Light, No Elodea. Grab the 2 pieces of Elodea from the container using forceps, which should weigh 1.5 to 2 grams. Dry the plant off with excess water (including the biggest drops) with a paper towel before being weighed on the scale. After drying the Elodea, place one piece of Elodea into the Elodea Black Light beaker and
what type of milks the three milks were. The experiment is done on cow milk, rice milk, and soy milk. The importance of the next section was to see the effectiveness of the tablet in different pH levels. The second section was to test to see what foods and/or drinks it could be effective against. The last section was to see what temperature foods Lactex® could be taken with (i.e. ice cream, hot cocoa (made with milk), etc.). The importance of this experiment overall, is to be able to explain in accurate
and has the vital role of killing, bacteria, viruses and toxins and maintain a healthy body. In this experiment, the floating disk method was used to observe how catalase enzyme activity was affected by the concentration of substrate. Ultimately, this imitates the reactions that occur in the human body when the catalase enzymes break down and balance the hydrogen peroxide. A small disc of filter paper, which had been soaked in yeast, was placed into a hydrogen peroxide solution. The yeast catalase then
chemicals Paper towels Used to dry the wet crucible after cleaning Tripod Used to support the gauze mat and crucible Chemical waste bin Used to dispose of chemical waste Method: 1. Place the heatproof mat onto the bench and then place the tripod on top of
hydroxide into the 30mL of enzyme until the pH levels are met. Then, measure out 30mL of hydrogen peroxide solution into an identical set of beakers. Using forceps, immerse a 2.1cm filter paper disc into the prepared peroxidase solution for 5 seconds, and then remove the disc and drain for 10 seconds on a paper towel. Put the disc into beaker containing enzyme with the pH of 3. Then, start the timer when the disc hit the bottom of the beaker. When the hydrogen peroxide breaks down by catalase, oxygen
Analysis: Part one Diffusion through a dialysis membrane in an artificial (model) cell: We can show diffusion or osmosis by making an arifical cell using a bag made of dialysis tubing and placing it in a beaker of water. The bag represents a cell; the dialysis tubing represents the cell membrane. Inside the bag or your artificial cell, is your glucose, and starch. Outside the artificial cell is only water. Glucose is a small molecule and will diffuse out of the bag into the water in the beaker
In this experiment two mealworms were placed in different climates to see how the different climates impact their ability to eat. The first climate is going to be 9 degrees Celsius while the second is going to be 30 degrees. Since, meal worms usually live in warm dark places while eating and storing energy to become a pupa and eventually beetles (mealwormcare), it must be important to their survival to be in a warmer climate. Survival is the state or fact of continuing to live or exist. Their ability