Powerful Alnico 1 bar magnets, shipped in pairs, with separators and keepers. Width 1/2, Thickness 1/4.

Accurate, non-rolling hexagonal masses are made of steel, and feature a durable black oxidized finish. Available in both customary and metric sizes.

The calorimeters hold up to 200 ml of liquid and the digital thermometers measure temperatures between 50°C and 150°C with a precision of 0.1°C. The aluminum bridge has a cross sectional area of 122 mm² and is about 200 mm long between the liquid reservoirs (the exact length can…

This kit is designed for high school students to learn the principles and applications of electromagnets. It includes two coils on plastic spools, a U shape iron core, a straight iron core, two magnetic compasses with stands, and a pair of wires. Students can build a bar-shaped and a U -shaped…

Convenient, economical package of materials to start investigating electricity concepts. Assortment includes: 6 Round Plastic Bulb Holders, 3 Knife Switches, 6 Battery Holders with Fahnestock Clips, 10 Fahnestock Clips, 1 Wire Stripper, 3 Wires with Alligator Clips, 18"; Assorted Colors, 3 Wires…

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

Glass thermometer with red Toluene solution is mounted on a plastic backing card. Range is -40° to +50°C .

Developed in partnership with Argonne National Laboratory, this kit gives your students the opportunity to apply a revolutionary nanotechnology manufacturing technique to grow nano-scale and micro-scale copper wires. Using a unique ultra nanocrystalline diamond (UNCD) electrode, students use…

Sturdy support for meter stick demonstration balances and torque experiments. The cast metal support is 18.5 CM high. Requires knife-edge clamps, slotted weights and hangers, and a meter stick. Shipping weight: 0.5 Lbs., dimensions: 7" x 3" x 3".

Quick and easy tools for demonstrating thermal expansion. There are four bar combinations: Brass/Aluminum, Brass/Iron, Copper/Iron, and Brass/ Copper. Since each metal has a different coefficient of thermal expansion, they will create a unique curve when paired with a different metal. Metal bars…

Knife Switches for low voltage experiments (less than 36V) with plastic bases. These items are available with either thumbscrew or spring binding posts.

The liquid convection apparatus is made from Borosilicate Glass and is bent into a rectangle with a filling funnel. To show the convection of heat in a liquid, simply fill it with a colored liquid and place a heat source at one of the bottom corners. Glass tube is 20 mm outer diameter bent into…

Includes a variety of tools, and objects for teaching basics of measurement. Kit is shipped in a reusable storage box. Kit includes Activity Guide with 15 activities.

21st century New York Balance is ideal for demonstrating basic physics principles including levers and center of gravity. Set includes a demonstration balance support, three knife edge lever clamps, a half meter stick, one 50g hooked weight, and one 100g hooked weight. Includes activity guide.

Index of refraction plate, made from acrylic or glass.

Consists of solid metal cylinder in a close fitting metal bucket, 19mm in diameter, 50mm long. Shipping weight 3 oz. Dimensions: 4"x1.5"x1.5"

Demonstrate key electrostatics concepts with this kit. Contains everything necessary to construct two flask form elctroscopes. Detailed manual included experiments using two electroscopes for positive and negative charge studies, and a Faraday's Pail experiment. Kit includes 2 Glass Flasks, 2…

Sedimentary rocks are types of rocks that are forms by the deposition of materials on the Earth’s surface and within bodies of water. The set included: bituminous coal, breccia, chalk lumps, chert, diatomite, flint, laterite, lime stone black, lime stone siliceous, mud stone, rock phosphate,…

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.

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.

Tripod magnifier, 10x magnification. Available in Plastic or Brass with Glass lenses.

United's series of STEM based curriculum kits accent the scientific method and independent inquiry featuring hands-on learning materials and exciting interactive digital content that can be accessed on a computer, tablet or your mobile device. Kits contain structured, guided, and open…

A basic inexpensive Fan Cart powered by two AA size batteries (not included) demonstrates Newton’s principle of action and reaction. Batteries are contained in the removable power unit and the fan is con-trolled by a switch. The propeller delivers a thrust of about 88 mN, accelerating the…

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…

Utilize the power of your smartphone with this unique Hall’s Carriage. The secure clip holds your smartphone securely for motion experiments. Using an app of your own choosing, you can graph acceleration and velocity. Includes activity guide. Secure clip holds your smartphone securely for…

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

These blocks demonstrate the density of four different materials-aluminum, brass, steel, and copper. Each cube is 3.2 cm and has a hook. Specification sheet included.

We offer a variety of magnetic compasses, from small plotting compasses up to a 45mm compass with a cover and locking mechanism. Our compasses include sturdy aluminum cases and magnetic needles with the North pole marked.

This classic devise is used to demonstrate the conservation of mechanical energy and its conversion from one form to another. After the wheel is rotated by hand to roll the supporting cords to the top and then released, its potential energy turns into kinetic energy of rotation as it falls. After…

This Collection contains 20 Types of Basic Rocks Specimens of Igneous, Sedimentary & Metamorphic Rocks Types. The Rock Specimens include Basalt, Gabbro, Granite, Obsidian, Pegmatite, Pumice, Anthracite, Gneiss, Marble, Quartzite, Serpentine, Slate, Chalk Lumps, Conglomerate, Diatomite, Flint,…

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.