Day 4-Diffusion and Osmosis

Today we learned about diffusion and osmosis. We learned that diffusion is the movement of molecules from a higher concentration to a lower concentration. We then concluded that osmosis is the diffusion of water. In the osmosis of water, a higher concentration of water moves through a semi-permeable membrane (meaning that it lets some particles out, but not back in) into a lower concentration. This movement is the water trying to reach equilibrium, which is when all the water molecules have the same concentration as their surrounding molecules. We spent the rest of class working on a lab, testing what we had just learned.