Product Overview
A double thistle tube with a porous membrane is held upright with the membrane covered end in a jar of water. When a sugar solution is added to the top of the tube, the liquid will rise in the tube. This apparatus clearly displays the concept of osmosis.
Includes:
- 1 Beaker
- 1 Double Thistle tube with membrane
- 1 Stable support for the thistle tube
You need sugar solution and food coloring.
Replacement membranes available here.
