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Students predict the net movement of molecules across a semipermeable membrane, and define what molecules move during osmosis. They conduct experiments to support the statement that all molecules are in motion.
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Cell Size and Shape; Diffusion and Osmosis Processes
Use salmon eggs as a cell model for demonstrating the movement of water over concentration gradients. Junior scientists examine the same process microscopically with an onion cell. They use a thistle tube and a semipermeable membrane to...
9th - 12th Science