Use this resonance bowl to demonstrate the behavior of waves and their interactions. Due to the vibrations caused by the rubbing of the handles, the water surface will begin to ripple around the rim. Soon water drops shoot up, quickly becoming continuous streams, like tiny fountain jets. The water droplets and jets grow and diminish with each rub of the handle. It is believed to generate the precise frequencies needed to produce standing waves - the spouts of water rise from these waves. An ancient experiment, this is an excellent demonstration model to use in the physics classroom.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
These large, powder-free, 5mil Nitrile Exam Gloves are designed and manufactured for superior comfort and protection.
This set includes four (4) N95 NIOSH approved respirators.
These disposable surgical-style earloop face masks conform to the ASTM F1862 Level 1 clasification. Box of 50.
High-protection, fluid-resistant and anti-static disposable lab coat in size Large.
This is a smart value 200 gloves box of Large Nitrile exam gloves.
An ancient toy featuring optical illusion and hands-on fun that never grows old!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
A combination of three of our great discovery toys, all in one package!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
View the glory of space with this hi-tech telescope set!
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