【science Toyts set】Our office thinking hand boiler set uses the principle of heat conduction to make the liquid inside the glass magically rise and fall，The hand boiler science toy is amazing and fun.
【Fun To Use Magic】Use your own body heat to boil the liquid inside the science toys， Cup the glass bubble pipe lower chamber in your palm and watch how the liquid boils and rises through the tubes into the top chamber，energy sticks for kids are artistically shaped glass sculptures containing a liquid that will "boil" as heat is transferred from your bare hand.
【Science Experiment Kit】Two people can hold the glass hand pipe at the same time, one holds the science experiment upper bottle and the other holds the hand boiler lower bottle, to see whether the liquid in the hand boilers rises or falls; two people can also take a kid experiments toy to see who's liquid rises faster. It is a perfect science experiment kits for kids 6-8.
【Multi-Situation Usage】hand bubbler can be used as a parent-child toy for the family to play games； and can also be used as a teaching prop，to demonstrate Glass Sciences Energy Transfer。Pretty fascinating science toy and an excellent demonstration of energy transfer.
【Prizes and Decorations】This glass hand pipe consists of 4 pcs 2.2*2.2*6.7" safe hard color boxes and 4 pcs 2*2*6.7" science experiment toys; the bottom of the hand boilers is smooth and can be used as creative decorations to decorate your study or office; kid experiments toy is made of glass, so please keep it out of reach of children.
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