Polished Acrylic or Flint Glass Right Angle Prisms.

Hooded lighter is safe and economical. The hood traps gas and protects the lighting file. Replacement flints are also available.

This convenient free fall apparatus for measuring the acceleration of gravity has a 150 CM fall length. It comes with an electromagnetic ball release, a pair of photogates on a long cable harness, two steel balls, a plumb line, a catcher , and an instructional manual. Requires the digital timer…

These student grade partial immersion thermometers are etched in 1° increments. Each thermometer comes complete with an anti-roll triangle and is housed in a convenient re-usable plastic storage. Filled with a red-colored kerosene mixture. The thermometer has a white back and is 11-3/4"…

These weights feature flat countersunk bottoms, with a double-ended hooked rod through the middle. They can be used on balance pans, as well as hooked in tandem for lever arm studies. Set of 9 weights consisting of 1 each 10g, 50g, 500g, 1000g, and 2 each 20g, 200gram weights. Weights are made of…

The classic demonstration of spectral lines. Each tube has its characteristic spectrum when energized before a spectroscope. These tubes acquaint students with the spectra of common gasses in their pure form as well as for demonstrating wavelength. The glass tubes are 25 cm long with the capillary…

These steel pins are coated with a black corrosion-resistant finish and have a yellow epoxy head. Pk/100.

United brand bottle top dispensers offer high accuracy at economical prices. Each dispenser is individually calibrated and certified in an ISO 17025 accredited laboratory in accordance with ISO 8655 standards. Five adapters are included with each unit for use with a wide range of bottle sizes. All…

Support rings with clamp, steel rod.

The set contains 6 acrylic lenses: one each of double convex, plano-convex, concavo-convex, double concave, plano-concave, and convexo-concave. Includes an activity guide and a reusable cardboard storage box.

Liebig condensers are used to cool and condense hot vapor as part of a distilling apparatus. This condenser has a straight inner tube that the condensing vapor passes through, and a larger outer jacket that cooling water passes through. Socket is 24/40

The 630-point solderless breadboard is built with high-quality construction that can withstand repeated use. It includes color coordinates that are screen-printed for easy reference. This breadboard is perfect for investigating circuit designs and prototyping. It accepts most electronic components…

Set of 2 lenses, 1 concave and 1 convex, 38mm diameter, 150mm focal length.

Fahnestock Clips supplied in packs of ten.

An economical, high quality bench set that is excellent value for introductory lens work.  Features include: 74cm extruded aluminum bench with push-on plastic feet and large easy to read scale, three-position riders accommodate push-in stems of optical parts, pushing stem in locks rider in…

21st century New York Balance is ideal for demonstrating basic physics principles including levers and center of gravity. Set includes a demonstration balance support, three knife edge lever clamps, a half meter stick, one 50g hooked weight, and one 100g hooked weight. Includes activity guide.

Quality linear gratings protected by two glass plates, 60mm x 45mm. Viewing area measures approximately 37mm x 20mm. The DFG525-pk/5 Diffraction Gratings in Slide Viewers has a viewing area of 35mm x 25mm.

This wooden pinning block has three steps. Excellent for mounting insects.

These foam calorimeter cups have excellent insulating properties so you can investigate thermal energy with minimal loss to the environment. The lids have holes for inserting a thermometer or temperature probe. Outside Dimensions Height: 4.25” Diameter: 4” Inner container: Height: 4” Diameter 4”…

Natural Gas with Flame Stabilizer Tirril Bunsen Burner

Cast iron ring with black enamel finish. Detachable zinc plated legs. Legs are interchangeable.

Painted Red and supplied with a keeper. Available in 3"; (left photo) or 1"; (right photo)

These superior quality, yet economical prisms and lenses can be used to teach a wide variety of optical principals. This set is housed in a wooden case and includes a detailed teacher activity guide.

Excellent for holding small objects, The jaws on these burette clamps open from 15mm to 45mm (0.5" to 1.75"). The clamp attaches to rods up to 13mm (0.5"). O.D. Jaws can be rotated and locked at any angle. Available with the jaws coated or uncoated.

High precision interferometer with interchangeable optics for Michelson or Fabry-Perot setups. 200 MM precision geared lead screw for fine adjustment. This product has a 90 day lead time. Market standard for this type of product.

Explore basic mechanics concepts with this all-metal, freestanding apparatus, designed for both durability and ease of use. The plane is wide enough to accommodate standard friction blocks or a Hall’s carriage with a smartphone attached, and its walled construction prevents objects from falling off…

These extension clamps features heavy-duty electroplated zinc alloy construction, dual prong adjustments and addtional fiberglass sleeves. Clamps have a max temperature use of 80°C. CLHD01 - 4" long extension rod is constructed of stainless steel. Prongs open to about 1.75",…

This micrometer is made of hardened steel for precision and durability. Its range is 0-25 MM and it has a precision rotary scale with a resolution of 0.01 MM, a ratchet thimble, and a locking lever. Instructions are included. Shipping weight: 9.5 Oz., dimensions: 6" x 4" x 1.5".

Our Radiometer is made from a glass bulb from which much of the air has been removed. Inside the bulb, on a low-friction spindle, is a rotor with 4 vanes. Each vane has one blackened side and one silvered side; one black vane features a white dot in order to count rotations easily. When exposed to…

Display version of the Foucault 1851 experiment to demonstrate the Earth's rotation. The 57" high unit contains a maintained pendulum whose precession rate can also be used to calculate latitude or time. This product has a 90 day lead time. Market standard for this type of product.

The Franck-Hertz Apparatus II is an improved model of the well-known Franck-Hertz Apparatus (FHA001), featuring updated electronics with better stabilization and digital readouts for voltage and current (more robust, easier to read correctly). New fully shielded coax cables reduce electrical noise.…

25 meters of durable string designed to be used with pulleys or force tables. The thread is made of cotton and measures at 1/16 inch (1.5 mm) diameter.