The Gummy Bear Experiment
The Gummy Bear experiment illustrates osmosis, a type of diffusion involving the movement of water molecules through a semi-permeable membrane. The gummy bear represents the semi-permeable membrane. The area inside of the gummy bear had a higher solute concentration than the area outside of the gummy bear, so the water was moving. In situations like this, water tries to move from an area of high water concentration (or low solute concentration) to an area of low water concentration (or high solute concentration). The water moves around until it achieves an equilibrium. In the Gummy Bear experiment, two gummy bears of the same color were first massed and measured. Then, 150 milliliters of water was placed in a cup along with a gummy bear. Next,
Gummy Bear Lab
219 Words | 1 PagesIn this lab, we soaked a gummy bear in water for twenty four hours to see the effects osmosis would have on it. When we got our gummy bear we would take its measurements and soak it in water. After twenty four hours we would take it out and record the measurements again and find the percent change. The question that we addressed in this lab was, what would happen if you soaked a gummy bear in water for twenty four hours? I hypothesized that after this time the gummy bear would increase in size.
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Rolly-Polly Experiment
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The Pros And Cons Of The Zimbardo Experiment
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Gum Wrigley's Last Stick Analysis
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Cold Water Lab
630 Words | 3 PagesInfer why the current that was created during this lab is called a convection current. Convection is the movement caused within a fluid when hotter, less dense water, moves upward, and colder, denser water, moves downward. I infer that the current that was created during this lab is called a convection current because the colder, denser water, moved beneath the hot water, causing the hot water to move upward. 4. How does this experiment demonstrate water density?
Essay On The Effect Of Temperature On Osmosis
1159 Words | 5 PagesExploration 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.
Jerry Burger Milgram Experiment
239 Words | 1 PagesAnother contemporary experiment conducted in 2009 by Jerry Burger, replicated the method of Milgram’s experiment, but instead adjusting the ethical issues that were identified in Milgram’s study. The ways in which Burger’s (2009) study ensured principles like nonmaleficence were not violated included utilising a screening process to exclude participants with any negative mental issues, emphasising multiple times that they could withdraw at any time and still receive remuneration and using a lower set of voltage shocks up to 150V unlike Milgram’s which shocked up to 450 volts (Milgram, 1963). To aid the participants psychological wellbeing, when the experiment had concluded the participant was informed that the person was not actually shocked
Gummy Bear Lab Report
538 Words | 3 PagesThe gummy bear's mass and volume will increase while the density of the gummy bear would decrease after it is put into water overnight. (#)This lab experimented to figure out wah changes would take to the gummy bear’s mass, volume, and density after sitting in a cup of water overnight. To do this the gummy bear's dimensions and weight was taken on the first day, along with its density and then the gummy bear was placed and water. When the gummy bear was taken out of the water on day two, the dimensions, weight, and density were taken again, and the difference between the two days was found. (#1)
Lab Report: Diffusion And Osmosis
1274 Words | 6 PagesIn 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.
Protozoan Lab
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Diffusion And Osmosis Lab Report
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Bread Mold Experiment
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