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Finger Boiler Pen

Finger boiler Pen - High-Tech Finger boiler Pens are Hot, Hot, Hot...
Heat from your finger causes the colored liquid in the lower viewing chamber to "boil" and rise, filling the bubble on top.
A fascinating demonstration of the laws of heat expansion.
Shake it down and do it again! It's science at your fingertips. The main ingredient is methanol. NOTE: shape of pen may very from the picture! Blue ink only.
Age s 12 and up


	Finger Boiler Pen
	Item# 3819125 Our Price: $ 6.95
	OUT OF STOCK	eMail this gift idea to a friend

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Finger Boiler Pen

Item# 3819125
Our Price: $ 6.95
OUT OF STOCK


Description & Details
Finger boiler Pen - High-Tech Finger boiler Pens are Hot, Hot, Hot... Heat from your finger causes the colored liquid in the lower viewing chamber to "boil" and rise, filling the bubble on top. A fascinating demonstration of the laws of heat expansion. Shake it down and do it again! It's science at your fingertips. The main ingredient is methanol. NOTE: shape of pen may very from the picture! Blue ink only. Age s 12 and up To See More Hand Boilers .