United Scientific Supplies

Optically true glass with scratch-resistant copper back silvering individual glass mirrors ideal for a variety of optics experiments. Focal lenghts available from 25mm - 300mm.

BOD Bottles for incubating diluted samples of clean, waste, effluent, and polluted water during the 5-day biochemical oxygen demand (BOD) test. Bottles are numbered to allow for convenient organization of samples. 300 mL bottles also include a bar code. Glass robotic stoppers are included. The 300...

Sterilized polystyrene transport tubes are graduated from 1 to 8cc with graduation intervals of 1cc. Include raised graduations on the outer surface, a flat bottom for self-standing, and a leak-proof polyethylene screw cap. Dimensions: 20mm diameter x 112mm height with cap. Case/500

The Electrostatics Kit is a collection of materials designed for students to investigate the creation of charges through friction between various rods and fabrics. Contents include: Hollow Glass Friction Rod (1) Glass Friction Rod, Half Ground (1) Ebonite Rod (1) String, 10' (1) Balloons (3)...

Stackable polycarbonate racks are compatible with both 1.5ml and 2.0ml microcentrifuge tubes. Each hole has molded in numbers and letters for sample identification. Ergonomic design provides easy insertion and removal and of tubes. Can be used in wide temperature range (-135 °C to 135 °C)....

This model displays the three essential parts of a plant cell: the cell wall, cytoplasm, and the nucleus. The model also shows the nature and position of the vacuole and nucleus. A detailed key is included.

Our meters are mounted in black plastic cases. Meters have a scale length of 75mm, offer +/- 2.5% accuracy and come with 5-way binding posts and an external zero-setting screw. Meters are not protected against prolonged or significant overload. Stackable for storage.

A convenient and safe solution for holding and transferring microscope slides. The inside walls feature slotted channels to keep slides separated and to make removal easier. The lids close securely to keep the slides safe. Accommodates microscope slides in two sizes: 75.0 mm × 25.0 mm ×...

This model is patterned on a corn stem to show the general anatomy of a monocot in both longitudinal and cross sections. Features such as the cuticle layer, epidermis, closed vascular bundles, parenchyma cells, and others are clearly shown. This injection molded model is more durable than the more...

Convenient assortments of various sizes of rubber stoppers in 1lb bags. These rubber stoppers are essential for sealing laboratory containers, preventing leakage and contamination. Made from high-quality rubber, they provide a tight and reliable seal. The stoppers are designed to fit a variety of...

This apparatus helps students to understand the Coriolis effect, the phenomenon whereby an object moving on a spinning surface will travel in a curved path. The demonstrations that follow will allow students to observe the Coriolis effect on a small scale, then explore how the Earth’s constant...

An oversized set of 6 lenses and prisms designed for mounting on a magnetic chalk or marker board. Lenses are about 8" long, so your optics experiments would be clearly visible from every part of the classroom. Each piece in the set has a pre-attached magnetic backing. Set contains 1 each of...

Pair of Magnetic Needles

Set of five color filters (2.5" x 2.5" x 1/8") made of acrylic. Includes one each of the following colors: red, orange, yellow, blue and green.

Useful tool for determining wind speed. Made of corrosive resistant materials for continued outdoor use. It features a red colored cup to easily count the number of rotations. Includes activity guide.

The EcoLift™ Lab Jacks are constructed of powder coated stainless steel. The height can be easily adjusted with a simple turn of the comfortable molded knob. The jacks are available in three sizes to fit various laboratory applications. Powder coating provides corrosion resistance Stable and...

Demonstrate Torricelli’s theorem to show the relationship between water pressure and depth. This clear acrylic cylinder, 19-5/16” high, includes three vertically aligned spouting nozzles positioned 4-3/4” apart. Each spouting nozzle also includes a stopper so pressure at each...

Our Berzelius (tall form) beakers are made from low-expansion borosilicate glass. Beakers feature heavy and uniform wall thickness, spouts designed for easy pouring, and beaded tops. The 20ml and larger sizes also have white printed graduations and a marking area. Tolerance for beakers is...

This magnetic compass is extra large (90mm diameter), comes in a bright color plastic case, with a clear plastic top. Shipping weight: 2.0 oz. Dimensions: 4"; x 4"; x 1".

Magnifying Glass with a glass lens, metal frame, and bakelite handle.

Lens Support, 38mm for optical bench set

Multipurpose tool that works as a stirrer as well as a spatula. This plastic policeman/spatula is a practical tool for lab applications requiring scraping or mixing of materials. Its dual-ended design allows for versatile use, accommodating a range of laboratory tasks. Made from durable plastic, it...

This extension clamp holds glass tubing or thermometers securely but gently. Adjustments are made easily with one hand using the wing nut. Clamp opening extends from 6 mm to 16 mm. Jaw width is 15.5 mm. Includes a stainless steel rod that is 15 cm long with a diameter of 10 mm. Overall length is 20...

Solar motor is specifically designed for experiments using low starting voltage (0.5V) and current (25mA). Speed: 1000-5000 RPM. Motor is approximately 38mm long x 24mm in diameter. Shaft size is 8mm long x 2mm in diameter. Includes soldered-on 4" wire leads.