In our gummy bear lab experiment, we experienced osmosis, the water version of diffusion. My lab partner, Maggie, and I were given two yellow gummy bears. The first one measured at 10 mm in both thickness and width, and 21 mm in height. The approximate volume was 2,100 mm^3, and the mass was 2.567 grams. The second one was 11 mm in thickness, 9 mm in width, and 20 mm in height. The volume was 1,980 mm^3 and the mass was 2.56 grams. After our initial measurements, we placed the first gummy bear in a plastic bag and sealed it. Then we gently dropped the other one in 150 mL of water. We then let both of those sit for 24 hours. The next day, we grabbed our cup and plastic bag, and began to take data. The gummy bear in the bag stayed roughly the same. The thickness and width …show more content…
This means that there are an equal number of molecules inside and outside the membrane. In our lab, some of the water passed through the gummy bear’s semi-permeable membrane, and that is what caused it to expand greatly. It was also very close to reaching an equilibrium, because there were close to the same amount of water molecules on both sides of the cell membrane. This experiment taught us a lot about osmosis, but it could be modified or improved in one particular way. In my opinion, if the brand of the gummy bear was different (maybe Haribo or Black Forest compared to store brand), we might have been able to take it out of the cup and the ears would not have fallen off. You might not taste the difference, but there are most likely different ingredients in them. In conclusion, the gummy bear lab experiment was a great exposure to osmosis in real life, and I found it very interesting to see the changes in the gummy bears when we were observing and measuring
We are doing a gummy bear lab. Gummy bears come in different sizes, shapes, and colors. Gummy bears are squishy, chewy, and sticky, they are made of sugar which are glucose and glucose are carbohydrate. We predict that during this stage of lab the solute and solvent will go through the stages of hypertonic, hypotonic and isotonic. We get 4 gummy bears and 4 cups filled half way with different types of liquid, such as Salt-Water, Coffee-Creamer, Vinegar, and Soda.
The data observed and recorded in this lab shows that the concentration of miracle gro’ does affect the growth rate and germination speed of black eyed peas. The data is shown through two graphs and two data tables. The control group in this experiment is the seeds with a 0% concentration of miracle gro’, therefore the seeds with just water. The experimental groups are different concentrations of miracle gro’ including a 10%, 15%, 20%, 25%, and 30% concentration. The variable in this experiment is the amount/concentration of miracle gro’.
The isotonic point is the point in which osmosis causes the concentrations of either side of the cell wall to reach an equilibrium (balance). The original experiment involved placing gummy bears in water and sugar and salt solutions (Gummy bear osmosis, 2022). The experiment was modified to further investigate the effect of varying NaCl concentrations on the mass of potatoes.
The balance of an object mainly involves the dissemination of mass in the object. In a myriad of aspects, balancing yourself or an object can be extremely different especially when we all odds such as gravity is stacked against you. As an example, some teenagers find it hard to balance school, sports and a job. With so much stress and various loads of duties it becomes too heavy for them to handle, and without the right balancing techniques, they can certainly tip over and fall. The same idea applies to the human body and objects in different situations.
Exploration Title: Effect of Temperature on rate of Osmosis Submitted By: Abdulkarim Kamal Date Submitted: October 19th 2015 Subject: Biology HL Teacher: Mr. Nick Aim: This is an investigation to determine the relation between temperature of a solution (sucrose) and the rate of osmosis Scientific Context: Osmosis is defined a passive transport process in which a fluid diffuses across a semi-permeable membrane, from an area of high solute concentration to an area of low solute concentration and vice-versa. There are various factors that could potentially influence the rate of osmosis; these factors include volume, concentration, and temperature. If all external factors that may interfere with rate of osmosis are controlled, the results will show equal amounts of fluid on both sides of the barrier (membrane); this is known as an “isotonic” state.
The volume also increased due to water absorption, because the gummy bear expanded, making the measurements larger. Volume is based on how much space an object occupies, and one way it is calculated is based on the measurements LengthxWidthxHeight. If these measurements increase, so will the volume. But density did the opposite and decreased. Density decreasing can come down to many factors, but a big one is the compactness of an
Synopsis This laboratory report gives an outline of the experiment which was carried out in order to measure the density of water at different temperatures via two different methods. The lab consisted of two parts. In the first part the density of water was measured by hydrometer. At first the density of water at room temperature was measured.
On our paper we predicted the amount of pennies that could fit in the boat before it sank. We tested the boat in the water and added pennies one by one. We then calculated the mass of pennies that fit in the boat and the density of it. The purpose of this Lab was to make a boat that holds as many pennies as possible and understand how to calculate
In this lab we used two processes called Diffusion and Osmosis. Diffusion is the movement of molecules from areas of high concentration to areas of low concentration. Diffusion is a process that requires no energy and involves smaller non-polar molecules. In Figure 1 you can see the molecules spreading throughout the glass from the area of high concentration, so that the areas with low concentration are filled evenly as well. The other process was osmosis.
In this practical agar jelly cubes will be used to represent a cell. AIM: To model diffusion in a practical form and investigate the effect of surface area to volume ratio. HYPOTHESIS: It is hypothesised the smaller the cube the quicker and bigger the rate of diffusion will be and with a larger cube there will be a smaller percentage of diffusion due to its bigger volume.
Diffusion and Osmosis Lab Report By: Jettica Williams BIOL 1107 Lab September 21, 2016 Prepared for Mrs. Fulford Lab Course Page Break The cell membrane act as a roadblock for cells. The cell membrane has a very hectic job. It restricts the access to what comes in and what goes out. The bond the membrane shares with others is the idea of accountability.
Osmosis Lab Report Research Question: How does the change in the concentration of a sucrose solution affect the process of osmosis in a potato cell by measuring its mass? Background information: 1 Osmosis is the process by which a liquid passes through a semi-permeable membrane, moving from an area with a high concentration of water to a low concentration of water. There are various factors that affect osmosis such as: concentration, surface area and temperature. The concentration of solutions can affect the rate of osmosis, as there is more difference in the concentration of the solutions, which means osmosis, will take place quicker. Surface area could affect osmosis based on the ease by which molecules can get through the semi-permeable
An egg naturally has a lot of stuff inside, so the outside solution has to be very concentrated for this to happen. That’s the case when an egg is treated with corn syrup or buried in salt. By contrast, when an egg is treated with distilled water, or a dilute salt solution, the solute concentration is higher inside the egg than out, so the water moves into the egg, increasing its mass. It may be easier to think about osmosis in terms of water concentration rather than solute concentration. If the solute concentration is high, then the water concentration will be low by comparison.
Restate Question & Hypothesis Testable Question: How does particle size affect the rate of infiltration? Hypothesis: If there is a rock sample in the funnel, then the water will drain at a slower pace because the rock will block the water from draining quickly. Evaluates original hypothesis using data Based on the collected data, my hypothesis was correct.
This experiment is to investigate the relationship between solute concentration and the movement of water through semipermeable membrane by the process of osmosis. The purpose of this The Visking tubing apparatus establishes the osmosis procedure. The Visking tubing is a semipermeable membrane filled up with concentrated sucrose solution. The surface of the semipermeable membrane symbolizes the visking tubes and the mixture demonstrates the cytoplasm. If the Visking tube is absorbed in water, after a period of time, it will be have water inside water, this is because the water molecules can pass through the tubing, while the larger sugar molecules cannot diffuse out from the tubing because the size of sugar molecules do not allow it to go through the tubing.