Spring Scales are used to weigh loads and are used in physical science experiments as a basic accelerator. Spring Scales use Hooke’s law to determine the size of the force stretching the spring by measuring the displacement. The spring scale has a clear body that is graduated, a mounting ring…

A Tuning Fork Mallet is used to strike a tuning fork to produce a sound. This mallet has a rubber bulb top and a 6 inchplastic handle.

Our Electroscope Rod Assembly is designed to be a replacement for our Flask-Type Electroscope ( #4-50150 ), though it can be used to create an electroscope of your own. At one end of the rod assembly there is a clip for holding electroscope foil. The stopper has a bottom diameter of 28mm and a…

This single burner hot plate with skid proof rubber feet has a heating surface 154mm in diameter. Heat can be adjusted via a dial. 1000 watts. Operates using a 110V outlet.

The unit measures the velocity of sound in the air. Partially fill the resonance tube with water and then sound a tuning fork of known frequency at the tubes open upper end of the Resonance Tube. The water level can be adjusted until the air in the tube resonates at the same frequency as the tuning…

The Van de Graff Generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow metal globe on the top of an insulated column, creating very high electric potentials of 250,000 volts. It produces very high voltage direct current (DC) electricity at low…

Spring Scales are used to weigh loads and are used in physical science experiments as a basic accelerator. Spring Scales use Hooke’s law to determine the size of the force stretching the spring by measuring the displacement. The spring scale has a clear body that is graduated, a mounting ring…

These stands have nickel-plated rods, and heavy, corrosion-resistant bases for stability. They come as a set with support rings included. Stamped Steel Base #4-SSS66-R2 : Base [4" x 6"], Rod [18" x 5/16"], 2 Rings [diameter 3", 4"] #4-SSS67-R3 :…

These heat-insulating pads with low thermal conductivity are made from flexible aluminum and silica oxides with a small amount of organic binder. They are useful for protecting surfaces when working with hot items like crucibles or flasks. Sold in packs of 12 or case of 120. …

This semi-circular refraction tank has a printed protractor on it to observe and measure refraction. Instructions included. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause cancer,…

A ceramic Porous Cup replacement for the GSC Voltaic Cell.

Ammeters are used to measure the current flowing through a circuit. Current is measured in amperes, which is denoted by A on our meters. Our meters are accurate to +/- 2.5% and have banana jack style binding posts. This AC/DC ammeter can measure a range of 0A to 3A.

A simple lamp receptacle for use with small lamps. A great addition to any classroom experiment dealing with electricity. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including nickel oxide and lead, which are known to the State of California to cause cancer,…

An optical bench allows you to perform and observe the fundamentals of optics such as image formation, reflection, refraction, and more. The bench consists of a painted, square aluminum bar, two molded supports with leveling screws, and graduations from 0cm to 100cm, subdivided in millimeters. Feel…

  Optical Bench Student Demo A simple form Optical Bench that provides an accurate demonstrations of basic optics principles. It uses a metric meter stick as the support bench. The complete system includes: meter stick 100cm length, 1 object market, 1 object screen, 1 screen support,…

Centrifuge tubes are used to hold various liquid mixtures or liquids containing suspended solids so that they can be spun and separated in a centrifuge. Our tubes are made of polypropylene, are graduated, come in a neutral color, and have a frosted writing area. The 15ml and 50ml tubes are…

We carry three variants of dual-function dynamometers made from durable plastic with steel hooks. With the push-rod at the top or the hook on the bottom, you can measure both push and pull forces. The hook also allows you to weigh small objects. Measurements are given in both grams and Newtons. …

Use this apparatus to explain Ampere's rule. This demonstration consists of a heavy brass wire attached to a transparent plastic base. It comes with six small compasses and one larger compass. To demonstrate Ampere's rule using this apparatus, arrange the compasses around the wire, attach the wire…

These rubber balloons work perfectly to replace those found in our Deluxe Lung Model Apparatus. Size 9 inches. Sold in a pack 12.

Balls sold individually and in a variety of sets. Choose from aluminum, brass, copper, cork, glass, lead, steel, wood, and zinc. Sizes include 19mm and 25mm. Pick from one of the following styles: drilled center hole, solid, and with hooks. Ball sets include: 42003-19: 19mm diameter with…

Our flat electrodes are 18mm by 100mm, or approximately .75" by 4". The metal electrodes are 1mm thick, while the carbon electrode is 6mm thick. This set contains twelve electrodes – two zinc, two copper, two steel, two aluminum, two nickel, and two carbon. PRODUCT WARNINGS …

A Wheatstone Bridge is a tool that can be used to determine an unknown electrical resistance within a circuit by comparing known resistances to the unknown resistance value. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene, nickel, and lead, which…

Archimedes' principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. The Archimedes' Principle Apparatus is perfect for attempting repeat experiments of this…

Prism Smooth Polished Glass Surface Optically Clear Individually Boxed

The ball is placed on top of the acrylic square, which is positioned on top of an aluminum post. The spring is pulled tight and then released which shoots the square out from under the ball. The balls falls into a concave recession in the post. Similar to pulling a tablecloth out from under a set…

Our 6" by 6" Friction pads come in a variety of materials and are used to experiment with and observe friction. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

Our Lenz’s Law apparatus is a simple and effective way to demonstrate induction and Lenz’s Law of electrodynamics. The metal hoops (one open and one closed) are freely moving on a centrally mounted pin. When a magnetic field is introduced to the closed loop from a bar magnet, an electrical…

This 3“ metal ball will float in cold water and sink in hot water. Use it to demonstrate the effects of temperature and mineral content on water’s density. Instructions included. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the…

This tuning fork can play the note D at 288Hz. Use it any sound experiment.Sold in a pack of 10 tuning forks.

Our Candle Holder is meant to fix a candle to an optical bench to observe fire light in a controlled setting. This accessory is designed to work with our Basic and Deluxe Optical Benches (#OPTBN-BSC and #OPTBN-DLX). PRODUCT WARNINGS WARNING: This product can expose you to chemicals…

A zinc plated, stamped steel clamp with steel thumb screws. Will accept rods up to 3/4" in diameter. The distance between the position of the burettes is 7.25".

Our Orienteering Compass is great for map work or when hiking. Specifications: Graduated in 2° increments, and features four scales Black bezel with easy-to-read print Has liquid-filled capsule, declination correction scale, luminous points, and 4X magnifier in base Acrylic base…