Elephant toothpaste - if you've never heard of it, do a quick Youtube search! It's an experiment that excites and fascinates students! Such a great activity to do at school. Very fun. Direct connections to chemistry and in particular, the grade 5 Properties of Matter unit! In these slides, you can organize the experiment to do with your class. It outlines the experiment procedure, offers an observation table, videos by "String Theory" (available on Youtube, in French), and an explanation of what