Saggin' Spuds (Osmosis)

Osmosis is a tricky one for kids to understand, mostly because they get confused about the concentration of water versus the concentration of a substance that's dissolved in the water.
Osmosis is a tricky one for kids to understand, mostly because they get confused about the concentration of water versus the concentration of a substance that's dissolved in the water.
Get ready to learn a trick that you'll master within 2 or 3 tries and amaze people with every time you do it. It's the Incredible Inertial Egg Drop! GREAT intro demonstration for Newton's 1st Law!
Sound is fun to teach, and there are a ba-jillion and one demonstrations and experiments out there that showcase frequency and pitch, but not that many which address the amplitude of a sound wave.
This fun, reactive experiment is a twist on the classic "Dancing Raisins" Experiment - our problem with Dancing Raisins is that the raisins so seldom actually dance. It's so frustrating!
It doesn't get simpler (well, I guess technically it could) than this awesome, quick demo to prove that Air is Matter - that it has volume and mass.