Westminster Hand Boiler Science Toy

Hands Down, an Edmund Classic! -- Hand Boilers are looped and twisted glass sculptures containing a liquid that will "boil" as heat is transferred from your bare hand. Simply hold the large bulb end in the palm of your hand and within minutes, your body heat will cause the liquid to rise. - Once out of your hands, it takes a few minutes for the liquid to cool down and return to the large bulb. Pretty fascinating science toy and an excellent demonstration of energy transfer. Price per boiler.

About this item

• Pretty fascinating science toy and an excellent demonstration of energy transfer.
• Great as a desk toy or science display
• Beautiful for home decor!
• Best thermodynamics lesson!
• Only includes 1 hand boiler.
• Great novelty collector’s item
• Great gifts!
• Dimensions: 16 cm (H) x 4cm (Diameter)
• Available in red, blue, green and purple - Colors may vary
• Suitable for ages 10 & up