United Scientific Supplies

Borosilicate glass cylinders with pour spouts feature heavy uniform wall tubing and strong, stable hexagonal bases and a glass stopper. All cylinders come with bumper guards. Single metric scale calibrated "To Contain", accuracy per Class "A". ASTM E-1272, Batch Certified.

Space-saving, square shaped borosilicate glass, general purpose media bottles are autoclavable with permanent white imprinted graduations and marking spots. The screw thread opening has an I.D. of approximately 30mm. The supplied GL 45 cap is liner-less and both the cap and drip free ring are...

LabLok™ 3-Prong Heavy Duty Extension Clamps feature durable nickel-plated zinc construction. Offered in both single wing-nut and dual thumbscrew adjustable configurations, the prongs provide a wide grip capacity and gradual adjustment for grip control. These LabLok clamps are designed with...

Natural Gas with Flame Stabilizer Tirril Bunsen Burner

Borosilicate Glass Flat Bottom Boiling Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack.

This apparatus is useful for holding objects that are too large for standard clamps, such as glass distillation columns and odd shaped glassware. Chain and support band are made of strong chrome-plated brass, and support rod is constructed of stainless steel. Chain is 21” long and can be adjusted to...

This simple but precise launcher projects 16 mm steel balls at ranges suitable for use on the bench top or from the bench to the floor. A protractor and plumb line make it easy to set any required launch angle from 45° downwards to straight up. Three different spring tensions give three...

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 classroom...

Our inoculating loop features an 8" long non-insulated aluminum handle. The non-calibrated 26 gauge nickel-chromium wire loop is approximately 8mm in diameter.

This molded plastic bicycle wheel gyroscope is durably constructed and more resistant to distortion than a spoked wheel. Convincing demonstrations of the gyroscopic forces can be made using a rotating platform and the grooved hub and starting cord make accelerating the gyroscope to a sufficient...

An essential accessory for experiments with the popular Bicycle Wheel Gyroscope as well as for demonstrating the effect of moment of inertia on rotational motion (the “spinning skater effect”), this economical Rotating Plate spins freely due to its heavy duty ball bearing axle. Features...

Cut glass tubes easily and safely. This handy tool allows you to cut glass tubes up to 1.5” in diameter. The spring holds the cutting wheel open so this can easily be operated with one hand. Spring loaded. Easy one-handed operation.

Two-tier polypropylene racks hold up to 100 of 1.5ml microcentrifuge tubes. Racks are autoclavable and can be used in water baths or freezers. A molded-in alphanumeric index makes sample identification easy. Racks are stackable and have a 2-3/4" labeling are on two sides.

Enjoy watching celestial events in safety with these Solar Eclipse Glasses. These glasses include specially designed lenses that conform to and meet the Transmission Requirements of ISO 12312-2, Filters for Direct Observation of the Sun. They also meet the Transmission Requirements of...

This deluxe set includes a support stand (5” x 8”) with support rod (20”), support ring (3”), a 2-prong extension clamp with cork lined jaws and a clamp holder. The support rod includes a 3” long rod to provide more torque when securing the rod to the base plate.

Protect against cross-contamination using these racked, sterile filter pipette tips. These universal tips are manufactured from polypropylene and the filters are manufactured from polyethylene with a hydrophobic design to prevent liquids and aerosols from entering the body of the micropipette. These...

A set of colorful ceramic disc magnets, in six primary colors. Magnets are 25mm in diameter.

This 13 x 100mm polystyrene test tube has a capacity of 7ml. Tube features a round bottom and includes a hollow top plug cap made of polypropylene. Sold as a pack of 100 tubes.

Contains eight investigative activities that teach students how to use a multimeter to measure voltage and amplitude, calculate electrical resistance and electrode potentials, evaluate battery performance, assemble electrical circuits, and construct batteries. The kit includes enough materials for...

These handy tall form jugs, molded in polypropylene, are clear, autoclavable and have good chemical resistance. All sizes have handles for convenient lifting, and feature raised graduations.

Cars, or automobiles, are probably the most common way for transporting humans and goods. They may vary in size and design, but all are defined as motor vehicles that run primarily on roads and have wheels. Cars came into global use during th the 20 century and our developed economies depend on...

Demonstrate moment of inertia using this set of wands and rings. The distribution of mass affects the moment of inertia of an object. The pair of wands both have the same mass and length. However, when the wand with a movable mass has the mass positioned near its end, the wand is much harder to move...

These jumbo sized pulleys are designed for classroom demonstration. The single, double, triple, and quadruple pulleys are all 70 MM in diameter. The pulleys are "open" type-users can run pulley cords through them more easily. Lightweight, low-friction, and deformation-resistant plastic...

Slotted weight set with hanger & case, brass. Includes 1x50g, 9x20g, 1x10g, 2x5g, hanger