This long metal coil spring is ideal for visually demonstrating wave properties, such as frequency, wavelength, and interference, in the classroom. Can be used in a variety of experiments, and provides a hands-on teaching tool that students always seem to enjoy. Extends to thirty feet in length, measures about 6.5" fully coiled. Also makes a great gift for anyone who was or is a fan of the smaller toy version we all know from our childhoods.
Build a robot that's an artist too!
Great tarantula specimen for the science classroom!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Small booklet that gets you started in the wonderful world of rocks, minerals and crystals.
The ultimate Engino building set, with 100 different model project possibilities and two included motors!
This simple but amusing magnetic toy will keep you busy for hours!