United Scientific Supplies

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.

These compact scales have a 55 mm x 55 mm weighing platform. Each features four weighing modes: g / oz / ozt / dwt, tare function, and a 60 second auto shut-off to preserve battery life. Available in three different capacities. All use 2 “AAA” batteries (included). Auto Shut off after 60...

This compact device fits into small places to monitor the relative humidity and temperature. If using in an environment with a heatsource, do not place the probe directly near it. The easy-to-read digital LCD display shows the temperature to one decimal. The larger display shows the relative...

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...

This versatile clamp features two separate sets of adjustable jaws for securing two burettes or any type of cylindrical tubes simultaneously. The PVC-coated jaws can swivel 90 degrees so they can be next to each other or separated. The jaws are rounded to provide a better grip on round tubes, and...

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...