See science in action with this awesome pen! Heat from your fingers causes the colored liquid in the chamber to "boil". See thermodynamics in action when you hold the bottom glass bubble and the liquid inside “magically” rises to the top glass bubble! The heat generated from your hands causes the liquid to “boil” and rise to the top bubble. The liquid will even start to bubble once all of the liquid had reached the top. Once you let go of the bottom bubble, gravity causes the liquid to return to the bottom bubble. Stand that holds the pen upright is perfect for office desks and a great way to start some interesting conversation. AquaBubble Pen is also a surefire way to be known as the coolest kid in school!

Note: Boiler Chamber is made of glass and should be handled with care!


Pen Length: 5.8 inches

Recommended for ages 7 and older.

Weight: 0 lb 2 oz ( 0.06 kg )