STEM, Science, Education John Hawkins STEM, Science, Education John Hawkins

Episode 10: Van de Graaff Generator

Van de Graaff generators create an electrostatic charge. The original machine was made to help with particle accelerators back in the 20’s. Now it is mostly used for static electricity experiments…like making hair stand up.

Static electricity is created when electrons jump from one material to another. Think about when you rub your shoes on the carpet then touch a doorknob…or a friend. Or, when you rub a balloon on your head and your hair stands up. These are small scale charges. Static electricity can come in big forms too. Lightning is the biggest example or a static charge.

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STEM, Science, Education John Hawkins STEM, Science, Education John Hawkins

Episode 09: Water Rockets

A little over a week ago, on May 30th, we had the first manned space launch from the USA in a decade! How awesome is that?!?

This week we thought we would take another look at rockets. Four forces act on a rocket during launch. As we are shooting off our water rockets, see if you can pick them out. If you can, pick up your own water rocket launcher and a bike pump and try it out at home.

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STEM, Science, Education John Hawkins STEM, Science, Education John Hawkins

Episode 08: Fire. It's lit!

Different substances react at different temperatures. These are often called "burning points" or "smoke/melting/combustion points." You can find movie and TV show special effects technicians utilizing this part of chemistry when they create their effects. Ever see a scene with a person running down the street on fire? There is a science to it! Today we'll explore the burning points of a couple of different substances. This is not an experiment you should try at home!

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