This Drinking Bird works using properties of thermodynamics, converting thermal energy into mechanical energy. Fluid inside condenses from the evaporative cooling of the water off the bird’s beak, making it top-heavy and dunking it back into the water. The condensate rejoins the liquid pool in the bird’s bulb, and he tips up again. The process continues indefinitely.
• Comes with a Teacher’s Guide
• Assorted colors
• Adult supervision required

Item 7010-10

In Stock