Our Graham condensers are made from high-quality borosilicate glass and have a sealed, coiled inner tube and two inlet/outlet arms. These condensers have 24/4 ground glass joints, but we also sell Graham condensers with standard joints . PRODUCT WARNINGS WARNING: This product can…

Prism Smooth Polished Glass Surface Optically Clear Individually Boxed

A cast aluminum clamp with cork lined prongs to hold a flask securely. The jaws open to a maximum of 3". Overall length 9.5".

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…

The Weather Globe Barometer is similar in design and function of the first barometer created by the Italian scientist Torricelli in 1643. This glass weather barometer can be used to predict weather conditions. Rising water in the tube means bad weather, falling water in the tube means good weather.…

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.

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…

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.

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…

A cast iron clamp with nickel plated steel set screws. Sold individually. Available in the following sizes: 2" OD 3" OD 4" OD 5" OD 6" OD

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…

Lenses - Glass with ground edges - Double Concave

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…

Cast aluminum clamp with nickel plated steel thumb-screw. The clamps jaws have a range of 3/8" x 1-3/8".

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,…

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…

General purpose IMPACT Safety Goggles

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…

Thermometers are essential for taking temperatures in the lab. These thermometers have a yellow backing to make graduations easier to read. This thermometer is total immersion and has a range of -20 to 110 deg C. Thermometers are essential for taking temperatures in the lab. These thermometers have…

Glass with ground edges - Double Convex

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…

Remove moisture and air from tanks and other containers with this hand held vacuum pump. The gauge reads in both centimeters and inches of mercury. The pumping rate is 15ml per stroke and will displace up to 725ml of air. The pump is fitted with a valve to release vacuum. Approximate size: 10 x 7 x 2".

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…