United Scientific Supplies

Round, Clear Flint glass bottle, 60ml capacity.

Protect against cross-contamination using these racked, sterile low retention filter pipette tips. Retention level is 10 times lesser with viscous samples than standard pipette tips. These universal tips are manufactured from polypropylene and the filters are manufactured from polyethylene with a...

Polymethylpentene cylinders have glass-like clarity and feature easy-toread molded in graduations. Hexagonally-shaped bases for extra stability Large spouts for smooth flow of liquids during pouring Autoclavable to 121°C Meets accuracy requirements of Class A under DIN 12681 Supplied with...

These aprons are made of a chemical resistant PVC-Coated cloth which stays flexible. There is reinforcement at the points of strain. Cloth ties at the neck and waist.

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.

Manufactured from 5.1 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements, these test tubes are great for any lab. Each tube has a marking spot and reference mark for orientation during use and a threaded neck to accept screw cap, not included.

This convenient assortment includes 125 each of red, blye, yellow and green tubes. Made from high-quality virigin polypropylene, these microcentrifuge tubes are RNase, DNase, and Pyrogen free for safer use in molecular biology and other biochemical applications. Include a connected snap cap, large...

Rugged Plastic Pulley with deep V groves mounted on a metal clamp. Th sheave is 50mm in Diameter. Clamp can be mounted on surfaces up to 35mm thick.

This economical seven piece kit lets you demonstrate the conversion between different forms of energy. It includes four devices for generating electrical energy from mechanical motion (hand generator), chemical energy (batteries), light (solar energy), and wind (windmill) and three devices for using...

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

Deep form mortars with lips are glazed on the inside and outside. Oversized pestles are glazed to grinding surface.

Inspired by naval periscopes used on submarines, our handheld periscope is designed to show students the reflective qualities of light. Our version consists of an outer case with mirrors at each end set parallel to each other at a 45 degree angle.

Sturdy two-piece molded slide boxes hold standard 3" x 1" microscope slides. The hinged top has a reference card for you to write the corresponding slide description. The numbers on the opposite side are engraved for easy reference. Engraved numbers Securely closing clasp Key card for easy...

Glass prepared microscope slides, supplied in a wooden case.

Sturdy, rake retractor is made of stainless steel. Features 3 prongs and is 7.5" (190mm) long.

3 pronged extension clamp is 10" long and has rubber tubing covering the prongs Extention Clamp with cork covered jaws, 8" total length 3 Pronged clamp with aluminum rod, 10" long

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...

This apparatus helps students to observe energy transfer and conversion and investigate the systems that keep homes comfortable and safe. The suggested activities below will: explore the relationship between parallel circuits and current; understand how thermostats and circuit breakers operate; and...

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 :...

These heavy duty Magdeburg hemispheres are closer to the original version than the plastic or rubber models. Thick case iron walls and large steel handles make this item extremely durable. Plated brass valve and precision machining prevent leakage. Shipping weight: 4.5 Lbs., dimensions: 7.25" x...

Cast iron ring with black enamel finish. Detachable zinc plated legs. Legs are interchangeable, features removeable rings with 3.5", 4.75", 6.5" Ring O.D., 9" Height.

This is a popular accessory for electrostatic demonstrations. An insulating printed circuit board carries a metallic conduction path with six breaks and a binding post at each end. When connected to an operating electrostatic generator, simultaneous sparks occur in each of the breaks as charge flows...

Polycarbonate racks feature ergonomic design for easy handling. Provides good chemical resistance. Autoclavable and withstands temperatures from -135°C to 135°C. Includes molded-in numbers and letters for easy identification of test tubes.

Introduce students to the basic concepts of light reflection and refraction with this economical kit. Guided activities include reflection of light at a plane mirror and the refraction of light at a water interface. Contents: Acrylic plane mirror, 10cm x 10cm Cork mat, 15cm x 15cm 4 steel T-pins...