United Scientific Supplies

This attractive and economical Stirling Engine is both engaging and a great educational tool. It runs by exploiting the heat flow generated by the small temperature differences between room temperature and a container of hot water or ice. The Stirling Engine is an External Combustion Engine (the...

An economical, high quality bench set that is excellent value for introductory lens work.  Features include: 74cm extruded aluminum bench with push-on plastic feet and large easy to read scale, three-position riders accommodate push-in stems of optical parts, pushing stem in locks rider in...

Quality linear gratings protected by two glass plates, 60mm x 45mm. Viewing area measures approximately 37mm x 20mm. The DFG525-pk/5 Diffraction Gratings in Slide Viewers has a viewing area of 35mm x 25mm.

Offering resistance to thermal shock and chemical corrosion, United Scientific Supplies presents the Porcelain Combustion Boats. These instruments are precision-engineered to hold and heat samples during combustion reactions in analytical chemistry processes. The high-quality porcelain material...

Organic Chemistry Glassware sets are available in a standard set of 9 and a deluxe set of 16 pieces. The Standard set is designed to cover essential requirements for organic chemistry and is suitable for preparations up to 30g. All glassware is jointed. Both sets come in a sturdy, form fitting case....

Polypropylene beakers are highly flexible; a gentle squeeze creates a spout anywhere on the rim. Beakers feature a large writing area and are graduated in both oz. and ml. Stacking the ribs prevents the beakers from sticking together. 120ml/4 oz capacity, Graduation intervals of 10ml/0.5 oz, 70mm...

These mini pipettes include a two step plunger that facilitates super blow out from the tip. Can be used for reverse pipetting and repetitive pipetting, fully autoclavable. Color coded plungers. Individually calibrated per DIN 12650

This all-glass filter holder is used in particulate contamination analysis for filtering aqeuous, organic, or corrosive liquids. It is also recommended for HPLC solvent filtration. Complete set includes a borosilicate glass funnel, anodized aluminum spring clamp, vacuum base with sintered disc, and...

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".

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.

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...

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...

Made from soda lime glass (1.8 mm thick), fine ground and flame polished edges. Crafted by United Scientific Supplies, these Watch Glasses lend themselves to a variety of laboratory applications. Whether serving as containers for small samples, acting as evaporating surfaces, or functioning as...