Even though this is designed for kids, it’s amazingly entertaining. Cool science as well.

Here’s a great reminder that we’re surrounded by example of scientific principles. Who would have guessed that you can move cereal around in the milk using a magnet? More iron that you’d expect in Cheerios. Or plant the romaine lettuce stem to grow new lettuce.

Rob Spiegel has covered automation and control for 19 years, 17 of them for Design News. Other topics he has covered include supply chain technology, alternative energy, and cyber security. For 10 years, he was owner and publisher of the food magazine Chile Pepper.