A classic science toy that is sure to please. As you wrap your hand around the base of the hand boiler the blue liquid will appear to boil within the beautiful glass vessel. This demonstrates Charles’s law and energy transfer perfectly! This makes a great desk accessory as well.
Many facts printed on box that will assist in teaching how a hand boiler works and explain key scientific terms. Hand boiler is 7″ tall and 2″ wide at base, made of glass so keep out of reach of young children.
