As the pressure increases in one of the chambers, the liquid will be pushed into the other chamber, thus creating a stunning liquid display. As you wrap your hand around the base of the hand boiler the blue liquid will appear to boil within the beautiful glass vessel. 604. Many facts printed on box that will assist in teaching how a hand boiler works and explain key scientific terms. This process continues as long as the heat of your hand is applied to the bottom bulb.
A randomly picked colour will be shipped
A great way to get kids curious about the science behind common phenomena
Assorted colours - comes in green, blue, red & purple.
Looks striking on a windowsill or bookshelf
hand boiler
Reviews
ZMom
I bought this for my 12 year old nephew for Christmas. And maybe I should locate and print out some directions too, because a thermodynamics lesson is no good if you don't know what's actually happening. Sure, it is actually a fun scientific toy, but I'm going to have to find a different box to package it in before Christmas.
Bruno tomarchio
Imagine my surprise when instead of a "Hand Boiler" it arrived labeled as a "Love Thermometer. " It seems odd to describe this as a fun scientific toy for kids, yet it comes in a completely inappropriate package. The Hand Boiler/Love Thermometer/Whatever did arrive in good shape, and it seems to work just fine, so there is that, though.
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Joined in 2023 
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Joined in 2023 
82 
63 
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