A simple experiment involving inversion of a conical flask over burning a candle in a dissection tray with some water can be a stimulus for open-ended, really really fun, very very challenging -- to both students and teachers alike -- problem, covering some fundamental high school chemistry.
Who says sugar is bad for children?! It's especially not bad in a chemistry classroom where it can be used to create flares and to bring chemistry alive! This is the 6th Beauties vs. Brawns challenge.
When crystals in the Chemistry lab interact, it's not always crystal clear what is happening...unless you know Chemistry!
When liquids interact, there's lots to talk about in Chemistry. In this particular challenge, my students had to figure out what happens when two liquids are mixed.
