Why Hawaii’s volcano is so UNUSUAL

Hawaii is known for its volcanoes, but most volcanoes on earth exist along tectonic plate lines. Hawaii does not! What causes Hawaii to form, and how is it related to the mystery of a magnetic bar code across the Pacific Ocean? Host Dianna Cowern chatted with geologist Noah Randolph-Flagg from UC Berkeley while hiking on the island of Kauai. Continue reading

Balancing Hex Nut Challenge

Balancing Hex Nuts

This teeter-tottering tower of hex nuts can balance on the edge of a glass, but you’ll need help from magnets.

There are a number of things that can help your balance. You could try walking with books on your hand, walking a tightrope, or taking some ballet classes. If you’re a hex nut, however, you’re going to need some help from magnets and their magnetic fields. Do you think you have the magnetism it takes to master the Balancing Hex Nut Challenge?


  • 4 soda cans
  • 2 ceramic magnets
  • Ruler
  • 5 hex nuts
  • Tall drinking glass (empty)
  • Adult supervision

Click here to link to Steve Spangler’s Website for more details


How much does a falling magnet weigh?

Armed with a large neodymium magnet, an aluminium tube and a set of scales, Andy explores the interaction of forces generated as the magnet falls and the effect these forces have on the objects’ weight.

Explore more Tales from the Prep Room and let us know in the comments below which experiment you would like to see from us next: http://richannel.org/collections/2011…

Watch more science videos on the Ri Channel http://richannel.org