Vocabulary: Diffusion, Osmosis
Associated vocabulary: Concentration, solute, solvent, semi-permeable membrane
This topic is about a process that involves a part of the cell that you learned about last year in grade 7 - the cell membrane.
The role or job of the cell membrane is to allow things in and out of the cell.
Once inside the cell, these "things" - nutrients, food or waste - moves through the cytoplasm by a process called diffusion.
Water, being such an important abiotic factor for organisms, also moves by diffusion, but because it is so special, we give its movement by diffusion a special name - Osmosis.
Here is a video using eggs to show Osmosis rather than gummies.
. . . and the songs just keep getting better in Cycle 1 Science ;)
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