This activity highlights the simple wonders made magical in the minds of children. I love that it lends itself to lessons on an array of chemistry concepts, (states of matter, molecule behavior, reactons from temperature, etc.) This activity is especially great for those who live in cold climates and are missing the fun or outdoor activities. A little more info explaining the why's and how's of what is going on would easily turn this activity into a "best in class" all 5's, but it comes close because of the high engagement potential! Great project!