Children (and adults) will be mesmerized by this classic heat/energy experiment. Using the properties of thermodynamics, this glass bird converts thermal energy into mechanical energy.
Watch the liquid inside slowly climb to the bird's head and make it tip to drink, rock back, and do it again! No batteries. The process will continue indefinitely as long as the beak reaches water (glass not included).
Includes excellent Teacher's Guide with explanations & activities. Assorted colors. Ages 6+, with adult assistance. 7⅜" high with stand.
Your satisfaction is guaranteed.
You may return any item, for any reason, and receive an exchange, replacement or refund.
