misconceptions

Marbles, Inertia, and Paper Plates


This experiment started out as a Science Photo Challenge and got such a great response that I wanted you to experiment with it yourself. It is a wonderful physic puzzle, and offers interesting insights into the science of force and motion.

To try this, you will need:

  • a paper plate
  • scissors
  • a marble or other small ball

Lets start with the question from the Science Photo.

Magnetic Lines?

Open any book or web page that talks about magnets, and you will probably see a drawing that shows magnetic lines of force that extend from one end of the magnet to the other.

Are there really lines of magnetic force as they show in the drawings? Well, lets find out.

Egg in a Bottle

This experiment is a classic. If I had to pick the one science experiment that I have seen in the most science books, this now would be it. But it is also a very misunderstood demonstration. You will find that even many books of science experiments get the explanation for this one wrong.

Earthquakes and Tsunamis

I frequently get questions about earthquakes that causes devastation, so I thought we would experiment a bit to help you understand more about them. This is a topic that many people, and the news media especially, frequently misunderstand.

You will need:

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