This is a quick and clean way to visualize magnetic fields. The demonstrator is a transparent acrylic case that holds iron filings suspended in a fluid of appropriate viscosity. When it is placed over a magnet, the field pattern can be viewed directly, or it can be placed on an overhead projector…

The Ballistics Car demonstrates that the horizontal motion of an object is unaffected by forces which act solely in the vertical direction. The car's low-friction wheel bearings allow it to coast at an essentially constant speed. If the spring in the gun is triggered while the car is coasting, the…

Double plastic pulley, in tandem Pulley Diameters of 38 and 50 mm One (1) high quality, double plastic pulley in tandem, on a steel frame, with hooks at each end carrying two plastic pulleys with diameters of 38 and 50 mm respectively. Inner gap of pulley measures 3 mm, overall length is 11.4…

Magnifying Glass with a glass lens, metal frame, and bakelite handle.

These prisms are made from optically-clear acrylic. They have an equilateral triangle shape (25mm edges), and are boxed individually. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including ethyl acrylate, which are known to the State of California to cause…

Specially constructed hammers for sounding tuning forks. TFWHAM has a spherical hard rubber head on a varnished hardwood handle. TFHAMR has an acrylic head with a rubber end mounted on a metal/wooden handle.

Our Digital Voltmeters are simple, have an easy-to-read display, and run on a 9V battery. We sell several different voltmeters with different ranges of measurable voltages. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known…

The liquid convection apparatus is made from Borosilicate Glass and is bent into a rectangle with a filling funnel. To show the convection of heat in a liquid, simply fill it with a colored liquid and place a heat source at one of the bottom corners. Glass tube is 20 mm outer diameter bent into…

This wooden machine is elegantly designed and easy for students to use. It comes with a built in mass but the cart has a shallow indent for adding additional mass if needed. Student can study several different simple machine concepts off of this one apparatus. Supplied with manual. Size: 42…

Clear plastic magnifier is 90 mm (3.5") in length and features a lens of 3x magnification. The lens is 35mm in diameter.

This comprehensive and economical set is based on a mechanical vibration generator and a sine wave signal generator and includes a support system anda range of accessories.  The imprtant basic types of mechanical vibrations and waves can be investigated.  Includes demonstrations…

This set of 15cm long x 2cm wide strips can be used in chromatography studies. Sold as a pack of 100 strips.

This apparatus is an effective tool for demonstrating the coefficient of expansion of metals. It comes with rods of the following materials for you to test: copper, brass, aluminum, and steel. To demonstrate linear expansion, place a rod inside of the apparatus’s tube that has both an inlet and…

A comprehensive set of mechanical vibration and wave motion apparatus based on a sturdy, reliable vibration generator that can be used with any frequency generator that can deliver a signal of up to 1A. The piston delivers an amplitude of up to 7 mm, depending on the load and frequency. The…

Help students to visualize and grasp Newton’s Second Law of Motion! This sturdy unit demonstrates that a horizontally projected ball and vertically dropped ball land at the same time. The spring device can propel a ball up to 48 inches from its starting point. It comes with a detachable rod for…

The calorimeters hold up to 200 ml of liquid and the digital thermometers measure temperatures between 50°C and 150°C with a precision of 0.1°C. The aluminum bridge has a cross sectional area of 122 mm² and is about 200 mm long between the liquid reservoirs (the exact length can…

A set of six glass spherical mirrors with back survace silvering. Includes three convex and three concave mirrors, all of 50mm diameter. Focal lengths are: 50mm, 100mm, 200mm, -50mm, -100mm, -200mm.

An insulated snap-on connector with 15cm red and black leads.

Unique small scale version of the famous cavendish experiment to verify Newton's Law of Gravity and measure the Universal Gravitational Constant, G. This unit is remarkable for measuring the tiny value of G by simple, easily-understood means. This product has a 90 day lead time. Market…

Sturdy metal construction throughout Ideal for demonstration of wide variety of mechanics principles 2" (5cm) diameter sheave Completely rotatable pulley for flexibility in experiment setups Adjustable to 9" height with 1.9" maximum clamp opening Sturdy, metal clamp pulley can be used to…

Sturdy support for meter stick demonstration balances and torque experiments. The cast metal support is 18.5 CM high. Requires knife-edge clamps, slotted weights and hangers, and a meter stick. Shipping weight: 0.5 Lbs., dimensions: 7" x 3" x 3".

This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide x 23" long. Includes a 14oz. Roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses.

This attractive and economical Stirling Engine is both engaging and a great educational tool. It runs by exploiting the heat flow generated by the small temperature differences between room temperature and a container of hot water or ice. The Stirling Engine is an External Combustion Engine (the…

A visual demonstration of how a lung is emptied and filled with air by the relaxation and contraction of the diaphragm muscle. Two balloons are attached to a glass "Y"-tube and simulate the lungs. The chest cavity is a plastic bell jar. The rubber sheet is used to represent the diaphragm.…

Plastic Insulated Copper wire is 22 gauge, supplied in 100 foot rolls and available in three colors. Bare Nickel Chromium Wire is supplied in 4 ounce spools. Enameled Copper Magnet Wire is supplied in 4 ounce spools. Soft Bare Copper Wire is available in 4 ounce or 1 lb spools.

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,…

Consists of solid metal cylinder in a close fitting metal bucket, 19mm in diameter, 50mm long. Shipping weight 3 oz. Dimensions: 4"x1.5"x1.5"

Optical Quality Acrylic Prism polished on all faces 25mm length, 25mm face Refractive index close to optical glass Can produce rainbow from a non-monochromatic light source such as sun light Made of acrylic which will not break or chip like glass, is a softer material so handle with care to…

Perform Fresnel's Biprism Experiment on a 1m optical bench. Precision optics allow fringe position measurements to 1/100mm. Easy alignment and adjustment of the two virtual light sources. Fresnel's Biprism Experiment is the fundamental example of common path interference by division of…

Our meters are mounted in black plastic cases. Meters have a scale length of 75mm, offer +/- 2.5% accuracy and come with 5-way binding post and external calibrating screw. Meters are not protected against prolonged or significant overload. Stackable for storage.

The kit has been designed to assist chemical education through university levels. Tapered plastic bonding rods help to simplify the construction process. Two kit options: 520 pieces that include 245 atoms, 125 hydrogen atoms with connected bonds and 150 various size bonds. as well as…