This trundle wheel easily rolls along the ground to measure linear distance. A metered counter measures up to 99,999 meters, and the rubber wheel edge provides a steady grip when rolling over different surfaces. Telescoping handle can extend from 43 cm to 76 cm to provide comfortable operation for…

Acrylic Semi-circular Lens, 75mm base, 15mm thick.

This seamless aluminum overflow can is designed to be used for displacement experiments and density measurements. Ours is made of aluminum and has an 80mm diameter and a 125mm height. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to…

Prism Smooth Polished Glass Surface Optically Clear Individually Boxed

Introductory level metric micrometer graduated to read up to 25mm in 0.01mm division. Comes in a plastic storage case.

Equilateral, 45mm sides hollow acrylic prism. Has one hole for adding fluids to study refraction and dispersion. Comes with a funnel and a stopper.

Understanding pendulum motion is fundamental to the study of vibrations and waves. This unique United Science Supplies kit includes everything necessary for a full exploration of the basic features of pendulum motion in a complete but economical set. The individual components are of proven design -…

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

Turbidity is the measurement of the cloudiness of a fluid. To measure turbidity using this apparatus, fill the tube with water and drain it slowly by limiting flow with the pinch clamp on the hose. Stop draining once the black and white Secchi disk on the bottom of the tube becomes visible, and…

The set contains 6 glass lenses: one each of double convex, plano-convex, concavo-convex, double concave, plano-concave, and convexo-concave. Includes a reusable cardboard storage box.

Made from plate glass about 2mm thick with highly silvered back.

These Spring Scales come in a clear plastic case, metal pointer, spring, suspension ring, and load hook. Scales are calibrated in Grams, Newtons, or both, with zero adjustment. Other prices are available; call for prices.

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.

This unique hand-held stroboscope was made possible by the development of high-power LEDs. The 30W Super-LED delivers bright flashes at adjustable rates from 1 Hz to 250 Hz, ideal for the motion rates encountered in lab situations. Features magnetic pads on back for attaching to vertical steel…

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.

Plastic 2" Pulley Clamp made of hard plastic Clamp max opening 1.250" Grey hand knob for tighting clamp Eisco labs Low Friction Force table 2" Pulley - Clamp max opening is 1.25" Clamp is made of hard plastic. Grey hand knob for tightening clamp

This handheld device provides a qualitative visual indicator of the conductivity of different solutions, acids or salts. Two brass probes can be touched to a solid substance, or immersed in a liquid, to show conductivity on green LEDs that range from 1 to 10. Each probe is 53mm long with a diameter…

The closed design provides a significant level of added safety in the classroom by reducing the potential for spilling chemicals. It is possible to use a chemical solution for several days, as they are contained inside the structure, allowing use over multiple class periods. The tanks can easily …

This molded plastic bicycle wheel gyroscope is durably constructed and more resistant to distortion than a spoked wheel. Convincing demonstrations of the gyroscopic forces can be made using a rotating platform and the grooved hub and starting cord make accelerating the gyroscope to a sufficient…

Galvanometers measure very small amounts of current or voltage in a circuit. Our meters are accurate to +/- 2.5% and have banana jack style binding posts.

2"; long, plain, chrome plated alligator clips with excellent conductivity. 2"; long, with insulated sleeve, chrome plated alligator clips with excellent conductivity. Pack of 10, five each red and black.

Set of 6 hooked aluminum masses with a plastic storage base.

Demonstrate how two identically sized cans absorb and radiate energy differently. One of the screw cap cans is smooth metal and the other is painted dull black. Water cools or heats at different rates because of the thermal radiation emitted by the two

Our Wind Vane with Metal Base is designed to be durable to withstand the elements. Simply face it towards the north to know which direction the wind is blowing. Its heavy metal base helps prevent the wind vane from blowing over during harsh winds. Instructions included. PRODUCT WARNINGS …

The Wave Demonstration Kit comes with one long, narrow steel spring and one larger helical spring that are matched to give nearly equal amplitudes of reflected and transmitted pulses and waves. A string and instructions are also included. PRODUCT WARNINGS WARNING: This product can…

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…

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.

This Electricity System 1 Physics Kit comes with 51 components, including a Circuit Board, and all the resistors, lamps, voltmeters and ammeters one needs to investigate core concepts in introductory electricity. With this kit students can explore common experiments such as Ohms Law, Series and…

This high quality 27mm lens is mounted in a sturdy black plastic loupe. Available in either 6x or 10x.

Micrometers are a preferred tool for measurement of the outside thickness of items such as metals. This tool is useful for machinists and anyone needing precise measurements. It can be used to measure glass tubing or other outside diameters in a lab environment. It is a perfect teaching aid in…

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