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|A membrane that does not allow molecules to pass through it.
|A membrane that allows molecules to pass through it
|A membrane that ALLOWS some molecules to pass though it but does not allow other molecules to pass through it.
|Movement of molecules from an area of high concentration to an area of low concentration.
|Movement of water molecules from an area of high concentration to an area of low concentration through a membrane.
|Food coloring in water, spraying perfume, teabag placed in a cup of hot water
|Examples of Diffusion
|Examples of osmosis