Marble Run

I took some video while I was writing Amazing Cardboard Tube Science. This shows one the projects–a marble run. Marble runs are great for discussing potential energy, kinetic energy, and energy transformations.

And here you can see some of the engineering challenges I had to overcome as I worked:

Now, a challenge for you! I added an upside down measuring cup at the end to “ding” when the marble hit it. Can you think of other ways to add sounds to your marble run? I’d love to see your solutions!

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