Physical Science

These award-winning, precisely tuned percussion tubes are excellent educational devices. Plus, they are just fun to use! Simply bang the tube on a knee or on the floor and you will hear a note from the C major diatomic scale-the longer the tube, the ...

The Ames tube is a unique new acoustical device which is a combination tuning fork and tuning fork resonator cavity. For the first time you can demonstrate in uncontrolled conditions, without elaborate bench equipment, a variety of acoustical experim...

Students are always perplexed when asked, “Do sound waves travel in a vacuum?” Demonstrate this concept with the Buzzer in a Vacuum device. The buzzer operates on a DC power source. Turn the power on and it buzzes loudly. Connect a vacuum pump to the...

This economical buzzer has several uses in a physical science classroom. One use is to demonstrate fundamental principles of sound. Tie a string to the buzzer. Spin the buzzer over your head and students will clearly hear the Doppler effect as the bu...

Accurately determine the average speed of sound in air with this elegant activity! Striking a tuning fork and holding it over the open end of a tube filled with water, students slowly lift the tube and tuning fork out of the water until they “hear” t...

Accurately determine the average speed of sound in air with this elegant activity! Striking a tuning fork and holding it over the open end of a tube filled with water, students slowly lift the tube and tuning fork out of the water until they “hear” t...

Safely and effectively demonstrate the Doppler effect! Swing this battery-operated buzzer over your head from its tethered string. Students will quickly observe a significantly higher pitch when it moves towards them, and a lower tone when it moves a...

Easily produce perfect tones between 10 Hz and 10 kHz with this high-quality sound wave generator. Ideal for acoustic demonstrations that require precise sound frequencies such as the Doppler effect, or sound wave resonance. Or, use it in conjunction...

Ideal device for your harmonic motion demonstrations. This ruggedly built oscillator will provide mechanical vibrations for driving strings, springs, ripple tanks, Chladni plates, or any other objects used in wave demonstrations. It sits on any flat ...

The perfect “toy” to teach concepts of resonance. Tilt the wand from side to side and watch as the wheel spins faster and faster. Students will become resonance enthusiasts as they attempt to get the wheel spinning as fast as possible. Re...

What is a wave, and what is the relationship between waves and sound? This comprehensive kit consists of five hands-on experiments to explore the properties of waves and sound. Using springs, students study longitudinal and transverse waves, and lear...

Simpler alternative to resonant water columns. No need for water and its inevitable mess. A tuning fork is struck and held at the end of an open-ended hollow resonance tube. While listening to the tuning fork, students slide the expandable column unt...

No need to mess around trying to mount meter sticks when you do your resonance experiments. The glass resonance tube in this superior apparatus is calibrated right on the glass! This direct calibration provides more consistent student data and more a...

Create the concepts of natural frequency and resonance with this dramatic demonstration your students will never forget! Students directly observe resonance in a pair of demonstrations using a series of wooden dowels. In the first demonstration, four...

Always a popular lab/demo sequence-waves in a ripple tank! Proven method for studying numerous wave/optics principles. This sturdy ripple tank is made of molded plastic and features a viewing area larger than other ripple tanks. Its bottom is made of...

A perfect light source for ripple tank illumination and any other experiments requiring intense illumination. Whether you need a point source, a line source or just high-power illumination, this inexpensive light source is your best bet. Orientation ...

Add versatility to your ripple tank. With simple adjustments on this wave generator, you can produce circular waves from a single point source, interference patterns from two point sources in phase, interference patterns from two point sources out of...

Attention! That's what this high-pitched sound-producing rod will get when you perform this demonstration. The 2-foot-long aluminum rod is held bare-handed and rubbed with a special rosin to produce amazingly loud sounds of different wavelengths. The...

A classic demonstration-times four! Demonstrate resonance in a variety of different metal rods. Which variables affect the resonating sound the most? Compare thick and thin rods, short and long rods, and solid and hollow rods. Will a hollow tube reso...

Mystify your students by creating a “singing” pipe organ from an ordinary metal tube. Fast, easy and excellent attention-grabbing demonstration to begin a sound unit, or to reinforce concepts such as standing waves, resonating frequencies, and air co...

Mystify your students by creating a “singing” pipe organ from an ordinary metal tube. Fast, easy and excellent attention-grabbing demonstration to begin a sound unit, or to reinforce concepts such as standing waves, resonating frequencies, and air co...

The original Slinky®-it stretches, snaps back, and will actually walk down stairs. Great for wave demonstrations.

Super-size your wave demonstrations with this extra long spring. Long enough to stretch across a classroom or gymnasium. Effectively shows transverse and longitudinal traveling waves, as well as standing wave patterns. Convenient storage stand will g...

The connection between physicists and music is a strong one. This delightful tape of physics songs, performed by teacher Mike Offutt, will add a new connection for your class. Students can sing along to “That Old Static Charge,” “Too Many Photons for...

Ignite your students’ interest in sound waves! The Sonic Flame Tube, also called a Ruben’s tube, is a demonstration that allows students to visualize waves and resonance. Natural gas is allowed to flow through a 3-foot aluminum tube containing predri...

Demonstrate the apparent discrepant effects of sound interference using an easy-to-assemble apparatus. Send a sound wave along two paths of different lengths. What happens if one path is blocked? The result may surprise you and your students! When so...

Finally-an inexpensive, yet reliable, standing wave generator! The principles of wavelength, amplitude, nodes and anti-nodes will become concrete to students using this durable wave generator. Highly visible apparatus measures four feet in height-all...

It's a fundamental wave principle-waves traveling through a medium at the same speed show an inverse relationship between wavelength and frequency. Now you can clearly and easily demonstrate this to your students! All you need is an overhead projecto...

Noise hose, singing tube, or sound pipe-whatever you call it-you'll have fun demonstrating the Doppler effect while producing five different resonant tones. Your students will not only learn science, but have lots of fun with the 30" sound pipe.

Produce standing waves at 60 Hz with this AC-powered String Vibrator. Plug in and clamp down the String Vibrator to a table and hold the other end of the string taut to easily make waves. Its small size makes it quiet and easy to store. Includes five...

Does a vibrating spring produce sounds even when they cannot be heard? Use the Thundering Tube amplifier to find out! Pull or shake the spring attached to the rubber drum attached to one end of the Thundering Tube and you will hear an astonishingly r...

Make sure your tuning forks always ring true by striking them on this hands-free rubber wedge. Activating a tuning fork on the soft edge will make it ring at its proper resonance-no distortion from higher harmonics. The rubber activator also elimina...

These convenient tuning fork blocks will save you time.• A quick glance at the end of class tells you whether your tuning fork sets are intact. • No sorting to get ready for the next class period. • No preparation needed for longtime storage. Simpl...

A versatile and economical alternative to tuning fork sets. This single fork is essentially a seven-tone set with physical-pitched frequencies of the C Major scale: 128C, 144D, 160E, 170.7F, 192G, 213.3A and 240B. The adjustment weights are easily ad...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

The finest quality aluminum alloy tuning forks with exceptional tone duration and superior sound. Each tuning fork is stamped with the frequency of sound and note. Set of four tuning forks includes 256-C, 320-E, 385-G, and 512-C. Set of eight tuning ...

Get a tuning fork to sing out its note without ever touching it! Your students won't believe you can do it-but you will with this extremely high-quality set. Set both forks at the same frequency with the open ends of the resonating boxes facing each ...

Quickly and effectively demonstrate constructive and destructive interference! One tube rings at precisely 440 Hz, the other at 441 Hz. Strike the bars with the rubber mallet to make them both ring at the same time. When the two nearly identical wave...

Designed specifically for use on your overhead projector. Demonstrate wave concepts or supplement individual student work with ripple tanks. All the wave basics-pulses, reflections, traveling waves, waves and obstacles, and interference patterns are ...

Make waves with this 1.8-meter helical spring. Demonstrate standing, transverse and longitudinal wave properties.

Wave stick models are a wonderful way to demonstrate frequency, wavelength, and amplitude of waves. In this kit the teacher will first demonstrate a preassembled wave stick model and then have students construct their own wave stick model. Students w...

A whistle is a “wind” instrument that can only make one note, right? Students will be intrigued as you produce a symphony of sounds with a single whistle. Sound waves travel faster in less dense gases, and therefore produce higher frequency (pitch) s...