Galileo ThermometerFeatures: The balls will slowly sink one by one when temperature increases, in the same way, the balls will rise as the temperature decreases. By this method you can determine the correct temperature. This thermometers measures 17. 5". Details: Produced from the idea of Galileo Galilei (1564 1642) who is an Italian astronomer and physicist and has been called the founder of modern experimental science. Galileo put 4 5 exactly weighted balls in a

This molded soft-rubbery plastic version

Toy Kaleidoscopes: Make Your Own Kaleidoscope

Details: PUFFY HEART UNAKITE This pendant is truly a love stone Its a 45mm heart shaped unikite stone

Our largest Sand Timers come in 50

Tangles are based on the concept of infinity and continuous motion

Flexible cloth-covered board protects the wall behind it and rolls up to store conveniently

The Cards Measure 3 1/8X 5

100 life set back card

Atom Cross "Maple" The (3) wooden brainteasers that are classic of a brain teasers

The kaleidsocope measures 2

are cleverly imbedded in the artwork

clear thinking