This colorful lab will allow your students to observe diffusion and the interactions of hypertonic, hypotonic, and isotonic solutions. It also works well as a demo.
The download includes the student handout, materials list, and answer key. There is an editable Word Document version and a formatted PDF version.
This is a quick, easy to set up lab that provides an excellent visualization of diffusion.
In this lab, you put water into a shallow, square container (such as a disposable food storage container) and place a gobstopper candy in a different color in each corner. After a few minutes, the dye from the gobstopper will diffuse through the water, and you will be able to see an area of equal concentration where the colors meet.
Search terms: visual learners, kinesthetic learners, diffusion lab