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Home » Prepared Slides » Cell Structures (Cytology) » Hand Boilers

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 -  Saturday, September 13, 2008
Amazing!
Reviewed By: Steven Silverman (Alejuela, Costa Rica)
These are terrific! Put them in anyones hand and they start boiling, without getting hot!

 -  Saturday, August 25, 2007
Kid's love it!
Reviewed By: Carolyne Lazar (Haleiwa, Hawaii)
This is a great gift. It really helped my kids realize the power of energy. Which is what everything is composed. I used it as stocking stuffers last year.

 -  Tuesday, August 14, 2007
Didn't last long
Reviewed By: Linda (Brunswick, GA)
I bought this for my classroom, but it didn't even make it to the first day. Someone must have put it down too hard, because now it has a crack and no longer works. It's leaking. Really cool, but you have to be very careful with it.


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