United Scientific Supplies

Overall length 9", rivted joints, tips are serrated. These crucible tongs are designed for safe and efficient handling of hot crucibles in laboratory environments. Made from heat-resistant materials, they provide protection against high temperatures. The tongs' design ensures a secure grip on...

Economical laser pointers are useful for many optical experiments. Lasers operate on a push-button switch, are housed in a rubberized aluminum pen-style case, and include a pocket clip. The 6" long x 0.5" diameter Class 3R Red laser pointer has a maximum output of 5mW and a wavelength of...

These bottles are made of translucent low-density polyethylene. Solutions can be dispensed easily and uniformly by lightly squeezing the bottle. The top closure and stem are molded in one piece to prevent against leaking. The closure is vented which also helps against pressure build-up and leakage....

This excellent instrument is easy to set up and easy to use and is designed for students to make precise measurements. This unit features high quality 22MM optics, a built-in illuminated auto-collimator for fast set up, a 17.8 cm diameter divided circle with clear gradations, a double-ended vernier...

This kit is ideal for teaching students how to make measurements in the metric system and then apply those measurements to determine density using the formula Density = Mass/Volume. Includes metric ruler, aluminum bar 76 x 25 x 6mm, aluminum cubes 13mm (2), steel sphere 13mm and glass sphere 13mm....

Our pH, Indicators & Dyes kit includes 4 primary activities, each accommodating up to 40 students. This STEM kit contains structured investigations to make inquiry based learning affordable and fun! For pennies per experiment, your students have access to digital PDF content such as Individual...

Single and double slit diffraction demonstrate the wave behavior of light. A single slit diffraction creates varying bright central line. Double slit diffraction produces an interference pattern with regularly spaced bright and dark lines. The variation of these distances creates varying patterns...

Weights are made of brass, with nickel plated surfaces. All weights are carefully tested and calibrated. Analytical Weight Box contains a total of 9 weights from 1 to 100 grams, in polished wooden box, with fractional weights, rider and forceps.

Weights are made of brass, with nickel plated surfaces. All weights are carefully tested and calibrated. Analytical Weight Box contains a total of 9 weights from 1 to 100 grams, in polished wooden box, with fractional weights, rider and forceps.

This solar system simulator is a great way to show students the order of the planets. Each planet can be moved independent of each other. The Sun has an LED powered by two AA batteries (not included), with the on/off switch on the base. Overall dimensions are: 10” x 12” x 18”....

This student force table is a complete set that features a dual scale, allowing students to take readings either clockwise or counterclockwise, four complete weight sets (each with brass slotted weights, 2 x 5g, 4 x 10g, 4 x 20g, and a 20g brass weight hanger), four pulleys with clamps and two sets...

Surface Plasmon Resonance is an analytical technique used for detecting and tracking a wide variety of surface processes such as DNA and protein interactions, drug mechanisms, immunoassays, anodic stripping, corrosion, gas detection, and many more. Demonstrate the principles of SPR analysis Use a...

Iron fillings sealed in a transparent plastic cast that measures approx.

Includes large hole in center and additional 6 to 10 holes depending on plate size. Glazed on one side. 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...

The SpillNot™ Plus is an inexpensive demonstration to intrigue students and challenge their analytical powers! Using the principles of Newtonian physics, this device keeps liquid in a container when it is swung back and forth. The large design of the SpillNot™ Plus holds three glasses at...

Quickly removes insulationwithout damaging wire. Set screw adjusts stripper to fit wire gauges from 10 to 24. Made from drop forged steel with black backed enamel finish. PVC Handles. Total length is 4".

Tuning forks are excellent tools for students to investigate resonance and pitch. A simple strike of a tuning fork onto a rubber surface demonstrates how its length affects the pitch that it creates. Tuning forks are useful in providing sound for resonance tubes or for exploring the Doppler effect....

The angle of an incline has a direct effect on the acceleration due to gravity of a freely moving object. The acceleration trolley rides down a long 30-foot cable with steel spring clamps on the ends. When the ends of the cables are attached to a secure position, this investigates how the...

Strong Wooden Frame with hinged cover. Slides fit into numbered beveled slots. Printed index lines the cover.

Clamp holders for rods up to 19mm (0.75") in diameter. Available in Cast Iron or Brass.

A pair of lenses mounted on a metallic frame with three adjusting screws complete with teacher activity guide.

The kit was developed by the same teacher who brought you recombinant DNA technology manipulatives. Now available are manipulatives for teaching protein synthesis. Wheteher you have taught this content a thousand times or this is your first, you will find that all students can learn this material!...

This set contains twleve 24 mL glass test tubes with rubber stoppers, and a brightly colored two tiered test tube stand.

The process of fermentation is when microorganisms act upon organic materials and produce gas as a byproduct. Different microorganisms and different materials produce various and unique gases. These gases rise and need to be collected and measured. These fermentation tubes are made from durable...