The Gummy Bear Experiment

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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,

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