Study wave motion at home! You will be able to experiment with wave generation, propagation, reflection, interference, and diffraction. The complete ripple tank unit includes a 27cm x 27cm water tank with Plexiglas bottom, enclosed ripple unit with variable speed control, and a variety of... more

This classic toy is also a very useful tool for demonstrating both traverse and longitudinal wave motions. 7cm diameter, extends to five meters. more

Extra-long 7-1/2 cm diameter slinky specially suited to study longitudinal and transverse waves. Extends to nine meters. more

By Jack Challoner. Your children will learn all about sound and light with the 40 easy, hands-on experiments in this book. Each experiment is well illustrated and almost all use household items. The "What's happening?" section explains what will happen and why. Parents will need to help younger... more

Measure sound wave lengths and determine the speed of sound with this inexpensive resonance kit. Includes 60 cm long glass tube, water reservoir, connecting fittings, 512 cps tuning fork and instructions. (Also requires a ring stand , burette clamp and meterstick or tape measure , not... more

This six-foot long, 3/4" diameter helical spring is a great tool for studying longitudinal wave motion properties. It extends to five meters. more

Did you know you can build your own seismograph (to record tremors in the earth) using a slinky and a suction cup? With this kit you will do that and much more. Learn about transverse, standing, and longitudinal waves, simulate an earthquake, make a slinky scale and a slinky sonar system, and... more