United Scientific Supplies

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...

These clamps are molded in polypropylene, making them completely corrosion proof. The spring loaded jack in the middle provides a vice-like grip to the burette and prevents in from slipping. Two tapered wedges are provided to ensure firm grip on the rods having diameter 0.5" or3/8"....

This line of 3-prong extenstion clamps are constructed of pressure die casted zinc alloy and are chrome plated. Clamps open to about 3", have a recommended maximum grip size of about 2.25", and feature double keyed spring-type adjustment screws. Available with an extension rod 8.25"...

Burettes with straight bore teflon (PTFE) stopcocks are made from the highest quality, accurate bore tubing to provide a high degree of accuracy, reliability, and durability. All graduations are in resilient white enamel. Accuracy per Class "B".

This complete set features high quality borosilicate glass parts and all hardware necessary for simple distillation experiments. Includes: 500ml Round Bottom Borosilicate Flask with Side Tube 300mm Graham Condenser 250ml Erlenmeyer Flask Glass Stopper Support Stand (6"X9") with 24"...

Tubing made from fine quality flint glass for easy bending, blowing, and sealing of soft glass apparatus. Tubing is 24” long and available in various diameters. Sold per pound.

Equilateral, 45mm sides hollow acrylic prism. Has one hole for adding fluids to study refraction and dispersion. Comes with a funnel and a stopper.

Set of 9 weights consisting of 1 each 10g, 50g, 100g, 500g, 1000g, and 2 each 20g, and 200gram weights. Weights are made of cast iron with a black enamel finish. Replacement weights are available separately.

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.

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.

Streak, unglazed, for use by mineralogists. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No softening occurs up to...

The kit contains a variety of custom made and unique components, including Force Board, Inclined Plane, and Vector Board. Also included is a complete set of accessories needed for 15 different activities, including an 11 piece weight set, spring scales, pulleys, levers, support base and rod, and...

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

A convenient starter set, includes our popular DSET14 instruments Set and one DPS001 Dissecting Tray. The tray includes a layer of white wax and measures 11.5" x 7.5" x 2".

Use this simple apparatus to measure relative humidity. Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements. The thermometers mount on a wooden handle so they can be spun to obtain tem

Graham condenser is designed for use in distillation applications. Constructed of borosilicate glass, this condenser has a coiled inner tube to provide additional surface area for highly efficient cooling. Socket is 24/40 with a screw thread connector.

This pre-assembled DC motor is designed for students to learn about electromagnetic forces. The open structure resembles the diagram found in many textbooks. The polarity of the magnets can be reversed to change the direction of rotation. The motor can also be used with a rheostat to observe the...

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

Spray bottles are made from clear polyethylene terephthalate (PET) and include a white spray nozzle with clear cap to keep nozzle clean and leak-proof. PET is lightweight, chemically resistant and has excellent durability. Available in 8 oz and 16 oz capacity.

This life size human skeleton model features unbreakable plastic bones which were carefully cast to preserve the finest details. The mandible is hinged; the arms, legs and skull are removable; and the calvarium is sectioned to allow for study of the cranial vault. There is natural movement in the...

Set includes two helical springs. The long, narrow spring measures 3/4" x 72", and can be extended to 5 meters. The larger spring measures 3" x 4", and can be extended many times its length without distortion. The long, narrow spring measures 3/4" x 72", and can be...

Made of quality sheet glass with ground edges, each slide is pre cleaned and packaged in boxes of 72 each. Available in standard shape or rounded corners for additional safety.

Inflatable world globe features country capitals, important cities, time zones, international boundaries and geographic features. The globe is 10” tall and 12” wide when inflated.

Featured displays of this electronic alarm stopwatch include time (hours-minutes-seconds, with 12 or 24 hour mode option), calendar, 24-hour stopwatch, alarm, hourly chime, 1/100 second chronograph, split time, and total time. It is lightweight, easy to operate, ad comes complete with battery and...