This is a recording of a recent live teleclass I did with thousands of kids from all over the world. I’ve included it here so you can participate and learn, too!

You’ll discover how to boil water at room temperature, heat up ice to freeze it, make a fire water balloon, and build a real working steam boat as you learn about heat energy. You’ll also learn about thermal energy, heat capacity, and the laws of thermodynamics.


  • cup of ice water
  • cup of room temperature water
  • cup of hot water (not scalding or boiling!)
  • tea light candle and lighter (with adult help)
  • balloon (not inflated)
  • syringe (without the needle)
  • block of foam
  • copper tubing (¼” diameter and 12” long)
  • bathtub or sink
  • scissors or razor
  • fat marker (to be used to wrap things around, not for writing)
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7 Responses to “Special Science Teleclass: Thermodynamics”

  1. amy_lubienski says:

    this is so cool

  2. nathsangeeta8 says:

    The metal legs

  3. Yes, you are correct. Although the name sounds complicated, we’re really introducing the ideas about heat and temperature, which we’ll need as we go through our earth science unit together. We’re still adding content to this area, so stay tuned!

  4. I’ll take a look – thanks for letting me know.

  5. mrssuboptimal says:

    The comments do not have dates on them, so I am not sure if this is a new thing or not, but I also got Thermodynamics instead of earth science for 3rd grade. 🙂

  6. Something doesn’t sound right – let me check the category information for this lesson and fix anything needed. Thanks for letting me know!

  7. jenny_piggott says:

    Hello, this content “Special Science Teleclass: Thermodynamics” looks like it’s 3rd grade earth science, not 9th? I accessed the page through Home > Grade Levels > Third Grade > Third Grade Earth Science. But telling me it’s 9th grade and I don’t have access to it. Can you clarify?