"tbe buffer"

Determine Concentrations of Unknowns

Prove that sounds needs a medium to travel through.

Airtight chamber reveals how sound disappears without air.

Relate Motion to Sound

This bell jar demonstrates that sound waves can't travel and therefore can't be heard without air or matter.

Foam ball with buzzer audibly demonstrates the Doppler effect during motion.

Easy to use kit to investigate sound wavelength.

WARNING: CHOKING HAZARD–Small Parts. Not for children under 3 yrs.

To Accompany Your Tuning Fork!

With the Resonance Apparatus, students investigate the effect of frequency on wavelength.

Boomwackers are brighly colored plastic tubes tuned by length to musical notes.

Used to investigate wavelength in air.