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Grape + Microwave = Plasma Fireworks

This experiment requires adult supervision. The fumes that are produced are not healthy, so be careful.

Heating up a grape that has been cut in half (but still connected by the skin) in a microwave can produce a plasma-like burst of energy, creating some neat fireworks.

Here is another video of the same effect:

And here is an explanation of what is going on (and why the flame may not be plasma):

In fact there are quite a few resources around this effect:

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  • Very Simple (1)
  • 12+ years old
  • Rough Cost: $1


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