United Scientific Supplies

Excellent for illustrating Newton's Third Law of Motion and the principle of Conservation of Momentum. The five polished metal balls with thin bifilar suspensions on a unique support design provide for better results and stability. Shipping weight: 1.15 Lbs., dimensions: 5.5" x 6" x 7".

Designed as a convenient solution for holding and transferring microscope slides. Fold-over cover helps protect the slides. The flat surface area on the inside of the cover is ideal for labeling or writing any necessary information. Recessed compartments protect the slides when the cover is closed....

The Celestial Globe is a demonstration device that shows the apparant positions of the stars visible from Earth. The three dimensional representation allows the relative angular positions of the constellations to be visualized and permits students to estimate which stars will be visible from...

These polyproylene racks can conveniently hold inverted tubes for drying and minimize collection or airborne contaminants. Racks can also be used to hold and dry electrophoresis and chromatography plates. Autoclavable. The 96 place rack features an 8 x 12 array of pegs that hold test tubes up to...

Burettes with straight bore teflon (PTFE) stopcocks are made from the highest quality, accurate bore tubing to provide a high degree of accuracy, reliability, and durability. All graduations are in resilient white enamel. Accuracy per Class "A", ASTM E-287, Batch Certified.

This STEM Qboidz™ set is developed for larger groups of preschool kids and comes with a large number of parts to allow endless creative building! There are available instructions for 90 models, even though children at this age use their own imagination. This is fueled by the proposed models of...

Set of 6 3-D manipulatives for demonstrating normal faulting, reverse (thrust) faulting and horizontal faulting. Set is provided with an access code to download interactive Teacher and Student Guides, videos, geoinformation data sets, and other resource information.

This skull model is excellent for introductory anatomy courses. Life size units shows excellent detail with a removable molar, incisor, and canine tooth for further study of the tooth roots. The mandible is spring mounted and the sectioned calvarium is detachable. A detailed key is included.

Demonstrate the Second Law of Thermodynamics with this apparatus. Immerse one of the aluminum legs into ice cold water and the other leg into hot water to demonstrate how heat transfer can be converted to electrical energy. This conversion turns the turbine. Show the reverse effect of converting...

Our magnetic stir bars are constructed of high-quality Alnico magnets coated with PTFE. Micro (Flea) magnetic stirring bars are designed for stirring small volumes in vessels such as vials or test tubes. Measures 12.7 mm x 3 mm.

Stainless steel flask tongs are 12” long with riveted joints. Heavy duty construction safely accommodates flasks up to 5000ml. Silicone-coated jaws grip flasks firmly and open to 6”.

These long stem funnels have smooth walls, 60 degree cone angle, and external ribs to prevent air lock. Molded in Polypropylene, these clear funnels can also be autoclaved.

Sturdy Z-shaped rack made from a single sheet of heavy gauge Stainless 304. Rack features 25 wells in 5 rows, for tubes up to 16mm in diameter. Polished, smooth surface facilitates easy cleaning and labeling.

This robustly constructed inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on top of a pillar, and a spring-loaded catch is mounted next to the pillar. When the catch is released, a...

Discover the principles of light and color with this dynamic color wheel. The 8-inch disc features vibrant color segments that blend into white when spun, highlighting the science behind color and additive color mixing. This demonstrates that white light contains the complete visible spectrum...

Pack of four inoculating loops designed with an 8" long solid brass handle and insulated grip. The non-calibrated 26 gauge nickel-chromium wire loop is approximately 8mm in diameter. Handles are color-coded for easy identification.

Glass prepared microscope slides, supplied in a wooden case. Contents: Allium Mitosis, ls Amoeba Proteus, wm Animal Mitosis, sec Bone, Ground Preparation, cs Desmids, wm Diatoms, Mixed, wm Euglena, wm Ficus Leaf, cs Human Blood Smear, sm Hydra - Plain and Budding, wm Muscle Types, Composite, sec...

The Resonance Apparatus allows students to investigate the resonant behavior of an enclosed air column when it is stimulated by an external sound source. The air column lengths for multiple resonances at various frequencies can be found and the resulting data can be used to determine the speed of...

Timer has large 1" digits for easy viewing. 3-key operation with memory and has a loud audible alarm. Features a pocket clip for added convenience and a magnet added to the clip to mount on metal surfaces. Requires one "AAA" battery (not included).

The DIY Electronics Set by Engino is designed for forward-thinking educators who want to go beyond closed systems and empower students to build, test, and iterate real-world robotic prototypes. Compatible with widely used microcontrollers like Microbit and Arduino, this set offers the perfect...

Suspend two funnels simultaneously using this polypropylene holder. These corrosion-resistant holders can be used with 3" to 6" diameter funnels, and include an extra plate to accommodate 1" to 3" diameter funnels. Two tapered wedges are provided to ensure firm grip on rods measuring 1/2" or 3/8"...

Use this convenient set to perform various pulley demonstrations. The durable 20cm x 15cm base is fitted with a capstan and a 61cm tall aluminum support rod. Also includes a 20cm crossbar with clamp.  Includes activity guide. Contents Wooden base with capstan, hook and rod support 1 Vertical...

These test tube baskedts are made of polypropylene. These autoclavable, unbreakable, and non-corrosive baskets are ideal for rinsing and draining glassware. They are also useful for storage of test tubes or culture tubes during sterilization or incubation.

GinoBot™ is a highly programmable robot ready to be used straight out of the box. Developed by a high-level research team of engineers and academics, GinoBot™ is a unique tool for teaching STEM disciplines, computational thinking and digital literacy with fun and hands-on experiential...