Tuning forks made from alluminum alloy. The frequency and leter scale is stamped on each fork.

This sturdy electroscope features a metal case with front and rear glass windows for preventing air currents from affecting the deflection of the leaves. Leaves are gold and aluminum. Leaf support rod is held in place by an insulating plastic sleeve. A graduated scale is also provided for measuring…

Glass prepared microscope slides, supplied in a wooden case.

Introduce students to the basic concepts of light reflection and refraction with this economical kit. Guided activities include reflection of light at a plane mirror and the refraction of light at a water interface. Contents: Acrylic plane mirror, 10cm x 10cm Cork mat, 15cm x 15cm 4…

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.

This wooden pinning block has three steps. Excellent for mounting insects.

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 post and external calibrating screw. Meters are not protected against prolonged or significant overload. Stackable for storage.

The Phase and Group Velocity Apparatus (oscilloscope not included) uses sound waves in the ultasonic region to clearly illustrate and distinguish the often poorly understood phase and group velocity concepts. It permits precise measurements of the velocity of sound in up to three different liquids…

Eight-part full-sized brain is molded from PVC plastic and hand-painted to show lobes. Parts of the brain are held together by embedded magnets. Includes over 50 labeled structures of the brain. Mounted in a rotatablemetal wire harness on a plastic stand. Includes a fold-out lam inated color guide…

Discover the science of music with the tuning fork and striker set. The 256 Hz tuning fork is made of high-quality aluminum alloy and has been accurately calibrated. A rubber hammer striker for sounding the tuning fork is included. The resonance frequency is stamped on the tuning fork.

All brass construction, with black lacquer finish wood handles. Includes instruction sheet.

Our magnetic stir bars are constructed of high quality magnets coated with PTFE. Cross-shaped stir bars increase turbulence and improve stirring action.

This calorimeter consists of two nested aluminum cans separated by a 1.7 CM thick styrofoam liner and a clear molded plastic lid with a filler cap. A plastic insulator ring protects the styrofoam insulation against damage and liquid spills. The inner reservoir has a capacity of 150 ML. A…

The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear…

An entire optics set at a great price. Includes everything you need to demonstrate basic principles of light and color. Comes in a reusable storage box. Includes 1 Doubel convex lens (38mm diameter, glass), 2 acrylic equilateral 25mm x 50mm prisms, 1 double concave 38mm glass lens, 1 plain 38mm…

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,…

This four-digit timer is designed to be used with air tracks, free fall apparatus, and other equipment. It is microprocessor-controlled and offers eight programmed functions to record counts, time intervals, periods of oscillation, accelerations, acceleration due to gravity, and velocities in…

Plates include numerous 5mm diameter perforations. Also includes large hole in center. Glazed on one side. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our…

This versatile tape measure is perfect for a wide variety of applications. The bright yellow steel tape retracts with a simple push of a button. It also features a high impact plastic case with a belt clip and loop handle. The tape is marked in both English and metric.

This is an excellent and economical set for introductory ray optics. The laser ray box projects one, three, or five parallel bright beams and is equipped with a momentary switch for safety. A vinyl template with a degree circle and a linear scale forms the optical disk, and the set includes seven…

A quick and easy tool for demonstration thermal properties of matter. Bar is bi-metallic and has a wooden handle attached. When heated, the bar bends dramatically. An activity sheet is included. Dimensions 9" x 1" x 1"; shipping weight 0.25 Lbs.

Set of equipment for studying the nuclear magnetic resonance of protons in hydrogen and fluorine and measuring the gyromagnetic ratio, Lande factor, and nuclear magnetic moment of these nuclei. Includes permanent magnet, oscillator, frequency counter, and power supply. Requires an oscilloscope. …

Flexible, 18swg stranded wire cord with a stackable banana plug at one end and an alligator clip at the other end. Alligator clip has a protective vinyl sheath.

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

Fahnestock Clips supplied in packs of ten.

A natural rock that contains traces of iron ore with natural magnetic properties.

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

These non corrosive molded support stands provide excellent alternatives to metal ones. Even the metallic rod has a polypropylene covering making it non corrosive. Each support base comes with a 0.5" diameter 30" long rod.

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…

Equilateral prisms, made from high quality clear acrylic sheet with highly polished surfaces.

Convenient fully assembled battery set holds up to 4 D-size batteries. Five color-coded binding posts on the base for easy, safe, and reliable connections to hook-up cords provide outlets for 1.5V, 3V, 4.5V or 6V supply voltages. Superior construction¡Xrobust, molded battery holders for secure…