Good quality weight set contains 9 weights (1 each of 1g, 5g, 10g, 50g, and 100 g sizes, and 2 each 2 g and 20g sizes) plus a set of 1 to 500 mg fractional weights and a 5 mg rider and forceps, in a wooden storage box. Weights are made of polished stainless steel and each weight is inscribed with…

Made from Plate Glass, with carefully ground and polished optical survaces, and cleanly ground edges, these lenses feature a diameter of 38mm - 125mm and focal lengths from 50mm - 500mm.

Made from plate glass about 2mm thick with highly silvered back.

Boxed set of High Quality Acrylic Prisms, made from clear acrylic sheet, all sides polished. The set consists of sic prisms in a variety of shapes, and an activity guide. Includes: 1 Rectangular block, 1 Semi-circle, 1 Equilateral prism, 1 Double convex lens, and 2 Double concave lenses.

Five pounds of black wax for dissecting trays.

Clear plastic magnifier is 110mm (4.50") in length and features dual lenses of 3x and 6x magnification. 3x lens is 50mm in diameter and 6x lens is 20mm in diameter. Handy molded plastic magnifier has 2x, 6x, and 8x magnification lenses.

This apparatus helps students to understand the Coriolis effect, the phenomenon whereby an object moving on a spinning surface will travel in a curved path. The demonstrations that follow will allow students to observe the Coriolis effect on a small scale, then explore how the Earth’s constant…

An entire optics set at a great price. Includes everything you need to demonstrate basic principles of light and color. Comes in a reusable storage box. Includes 1 Doubel convex lens (38mm diameter, glass), 2 acrylic equilateral 25mm x 50mm prisms, 1 double concave 38mm glass lens, 1 plain 38mm…

This unique kit allows students to make a wide range of investigations with only a small number of items. The kit contains two sets of three metal cylinders - aluminum, copper, and steel. In one set the cylinders all have equal masses, and in the other they have equal volumes. The measuring…

This mineral test kit is useful for rock, mineral and fossil identification. Kit includes: Hardness scale, dropper bottle, hand lens, glass streak plate, black streak plate, white streak plate, cermaic bar magnet, nail and penny.

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…

Explore the basics of navigation and orienteering with this easy-to-use compass. Product features a sight finder, as well as markings in both the metric and English scales. A detachable lanyard is also included. Map scale is displayed in mm with a ratio of 1:25000. Dimensions: Thickness when…

Sturdy economical scale for general use in the lab. It features a round plastic weighing platform. Capacity is 5 kg, or 11 lbs.

The Resonance Apparatus allows students to investigate the resonant behavior of an enclosed air column when it is stimulated by an external sound source. The air column lengths for multiple resonances at various frequencies can be found and the resulting data can be used to determine the speed…

The Minerals Science Activity Kit is the complete solution for young Geologists. This activity kit contains 20 types of minerals specimens that students can investigate the Mohs hardness scale, Streak test, Magnetism and acid resistance test. (Acid not included) The minerals specimens include :…

This miniature DC motor is designed for experiments using low starting voltage (4.5V) and current (70mA). Speed: 1000-5000 RPM. Motor is approximately 34mm long x 24mm in diameter. Shaft size is 10mm long x 2mm in diameter. Includes soldered-on 7" lead with alligator clips.

Introduce basic weather concepts with this versatile apparatus. Measure temperature (in Fahrenheit and Celsius) and wind speed, then reference the screen-printed chart to easily calculate wind chill. The device freely rotates to indicate wind direction, and its removable rain gauge allows for the…

We offer a superior quality Wimshurst machine for demonstrating high voltage electric charges. Our unit features acrylic rotating disks, good quality foil strips and brushes, insulated cylindrical capacitors, and a durable plastic platform. Guaranteed to produce large sparks for easy…

This unique hand-held stroboscope was made possible by the development of high-power LEDs. The 30W Super-LED delivers bright flashes at adjustable rates from 1 Hz to 250 Hz, ideal for the motion rates encountered in lab situations. Features magnetic pads on back for attaching to vertical steel…

Cylinder specimen set is used for density and specific gravity studies. Set of four includes aluminum, copper, steel, and brass cylinders. Includes a storage box and activity guide.

This simple and ingenious device quickly and graphically shows students how different metals conduct heat at different rates. It consists of four identically-sized bars of common metals - steel, brass, aluminum, and copper - mounted parallel to one another in a plastic support. Attached to each bar…

Demonstrate key electrostatics concepts with this kit. Contains everything necessary to construct two flask form elctroscopes. Detailed manual included experiments using two electroscopes for positive and negative charge studies, and a Faraday's Pail experiment. Kit includes 2 Glass Flasks, 2…

Telegraph key, mounted on a solid plastic base, measuring 11cm x 5cm.

Machined aluminum cylinder floats in cold water, but sinks in warm water. Measures 5/8" diameter x 3-3/8" long. Weight is 0.5 ounces.

Flexible 18swg stranded wire cord with two way stackable banana plugs at both ends.

Reliable and dramatic demonstration of the magnetic force between two current-carrying parallel conductors. Safely applies a large current to two pivoting brass tubes. Fuse protected. This product has a 90 day lead time. Market standard for this type of product.

Each unit consists of a wooden resonator box, tuning fork, and a tuning fork mallet. Resonator box is 18cm x 9cm x 5cm.

Tripod magnifier, 10x magnification. Available in Plastic or Brass with Glass lenses.

The Hall Effect is the generation of a side-to-side voltage in a conductor or semiconductor carrying a current when it is placed in a magnetic field. The effect is widely used in magnetic field sensors. It is associated with several well-known systematic errors, some of which can be eliminated by…

The Solar Kit offers a convenient introduction to the conversion of solar light energy into electrical energy. The conversion is carried out by a photoelectric panel, and three “consumers” are included to demonstrate the use of the electrical energy; an LED shows the conversion back to…

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

Double sided dry-erase mat (9” x 11”) includes a 1 cm x-y axis grid on one side for graphing activities. The other side is blank but coated so it can be used with dry-erase markers. Sold as a pack of 10.