A little story first and then Osmosis starts at the 1 minute mark. Also talks about solute, solvents, solutions, and how to figure out which direction water will move across a cell membrane.

Click on the labels to learn more about that part of the cell!

https://pbslm-contrib.s3.amazonaws.com/WGBH/conv19/tdc02-int-membraneweb/index.html