With just 3 ingredients: water, salt and gummy bears, we are going to delve into osmosis. Set up three cups:

• 1 cup half filled with water,
• 1 cup half filled with water and 3 tablespoons of salt
• 1 empty cup

Measure each gummy bear before putting one into each cup and leave for 8-24 hrs.

As you are setting this up think about what is osmosis, the difference between osmosis/diffusion and what each of these principles (hypertonic, isotonic, hypotonic) are and where they apply in this experiment.