Many facts printed on box that will assist in teaching how a hand boiler works and explain key scientific terms. This makes a great desk accessory as well. Fascinating, captivating and interactive are these Liquid Hand Boilers. This carefully curated collection of curios has been specially selected to inspire and delight. Voil√°! If you have cold hands the hand boiler will not work as well since the heat from your hand is not high enough to cause the liquid to evaporate and boil. The glass is very thin. This feat of science in action is a fantastic visual demonstration of Charles’ Law, which states that gases expand when heated!
A randomly picked colour will be shipped
Looks striking on a windowsill or bookshelf
Assorted colours - comes in green, blue, red & purple.
A great way to get kids curious about the science behind common phenomena
hand boiler
Reviews
Bruno tomarchio
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. The Hand Boiler/Love Thermometer/Whatever did arrive in good shape, and it seems to work just fine, so there is that, though. 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.
ZMom
Imagine my surprise when instead of a "Hand Boiler" it arrived labeled as a "Love Thermometer. I bought this for my 12 year old nephew for Christmas. " It seems odd to describe this as a fun scientific toy for kids, yet it comes in a completely inappropriate package.
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Joined in 2023 
82 
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Joined in 2023 
82 
63 
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