"power+supply"

Inexpensive inoculating loops and needles.

Simple tool to explore the thermal properties of matter.

Economical inclined plane with pulley.

Hand-held spectroscope shows the component wavelengths of light.

This durable gauze has a ceramic fiber center for flame protection and a longer life.

With custom designed components, this kit covers all the subject areas two or three individual kits usually address.

Stainless steel dissecting set with a storage pouch.

These zinc-plated support rings are made of durable cast iron.

High Quality for the Classroom.

Investigate centripetal force with this easy to use device.

Easy to use water sampler for depths up to 20 m.

Hold a variety of test tubes up to 20 mm.

Molded of flint glass, screw tip with reusable, snap-on sealer tip.

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

Easily connect a banana plug to a bare connector.

Demonstrate the conservation and conversion of mechanical energy.