Knife switches are used to manipulate how electricity flows through a circuit. The base and the handle of the switch are insulated to allow for handling. Wires are connected to the screw-type binding posts. This knife switch is a double pole, double throw, single pole, double throw, single pole,…

The unit measures the velocity of sound in the air. Partially fill the resonance tube with water and then sound a tuning fork of known frequency at the tubes open upper end of the Resonance Tube. The water level can be adjusted until the air in the tube resonates at the same frequency as the tuning…

Lenses - Glass with ground edges - Double Concave

Prism Smooth Polished Glass Surface Optically Clear Individually Boxed

Our Lenz’s Law apparatus is a simple and effective way to demonstrate induction and Lenz’s Law of electrodynamics. The metal hoops (one open and one closed) are freely moving on a centrally mounted pin. When a magnetic field is introduced to the closed loop from a bar magnet, an electrical…

The Friction Rods are useful in a variety of electrostatic demonstrations. 603-1: Made of glass tubing and sealed on one end 603-2: Made for a solid glass rod and the edges of the glass are ground to a smooth finish 603-3: Made for a solid glass rod and the edges of the…

Glass with ground edges - Double Convex

Connector cords are useful in various electricity experiments, as well as in many apparatuses that require connections to power supplies. All of our connector cords are made of 18-gauge insulated wire. These connector cords have alligator-clips on each end. Alligator-clip ends are useful for useful…

Electroscopes are used to detect and roughly measure the electric charge on an item. This aluminum-leaf electroscope has a metal case with a round viewing window. Replacement foil is also available. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including…

A syringe is used as an airtight piston that is mounted on a wood base and platform. Mechanical pressure in the form of weight, is placed on the platform, which changes the volume gas. You then plot the volume of gas versus the pressure to obtain a good approximation of Boyle's Law. The unit…

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

Teasing needles are used to manipulate small samples. These long, white plastic handles and are available with straight and bent tips. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause…

Our flat metal electrodes are 18mm by 100mm (approximately 0.75" by 4"). We carry electrodes made from seven different metals: aluminum, brass, copper, iron, zinc, nickel, and tin. Use them in your own experiments with electricity.   PRODUCT WARNINGS WARNING: …

Balls sold individually and in a variety of sets. Choose from aluminum, brass, copper, cork, glass, lead, steel, wood, and zinc. Sizes include 19mm and 25mm. Pick from one of the following styles: drilled center hole, solid, and with hooks. Ball sets include: 42003-19: 19mm diameter with…

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

Galvanometers measure very small amounts of current or voltage in a circuit. Our meters are accurate to +/- 2.5% and have banana jack style binding posts.

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

This seamless aluminum overflow can is designed to be used for displacement experiments and density measurements. Ours is made of aluminum and has an 80mm diameter and a 125mm height. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to…

Our ebonite friction rod can be used to experiment with and to observe friction. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.