Percussion or Reflex Hammer
|
Ripple Tank
|
Slinky, metal, "Original"
|
Slinky, metal, extra large
|
$3.95
|
 |
This percussion hammer is 8" long with a hard rubber head permanently joine... more
|
$132.95
|
|
Study wave motion at home! You will be able to experiment with wave generat... more
|
$5.50
|
|
This classic toy is also a very useful tool for demonstrating both traverse... more
|
$5.20
|
|
Extra-long 7-1/2 cm diameter slinky specially suited to study longitudinal ... more
|
Sound and Light
|
Sound Measurement Kit
|
Spring, helical, 6 ft long
|
Tuning fork, C, 256 cps
|
$6.95
|
|
By Jack Challoner. Your children will learn all about sound and light with... more
|
$14.95
|
|
Measure sound wave lengths and determine the speed of sound with this inexp... more
|
$11.95
|
|
This six-foot long, 3/4" diameter helical spring is a great tool for studyi... more
|
$4.50
|
|
This tuning fork resonates at a set pitch when tapped. You can also order a... more
|
Tuning fork, C, 512 cps
|
Tuning fork, C, 1024 cps
|
Wacky Waves Kit
|
|
$4.50
|
|
This tuning fork resonates at a set pitch when tapped. You can also order a... more
|
$4.50
|
|
This tuning fork resonates at a set pitch when tapped. You can also order a... more
|
$9.95
|
|
Did you know you can build your own seismograph (to record tremors in the e... more
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
