Iodine is a Sneaky Thing

7th grade learned that it is not a good idea to store iodine in a plastic baggie. In their experiment yesterday to better understand what diffusion is, to prove that diffusion is a real thing and that it is happening all around us, 7th grade observed iodine enter into a closed plastic bag.  Click  below to visit the website that describes the procedure for the experiment we did as a class. The photos are not from our experiment, but ours turned out exactly the same.
Click here to see the experiment.

The Diffusion Experiment