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Ray Box
This updated Ray Box uses five super bright LEDs for bright, white rays that are clearly visible.
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Fraction Stax Set
A colorful set of 51 plastic stacking pieces representing one whole, halves, thirds, fourths, fifths, sixths, eighths, tenths, and twelfths.
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Gravitational Balance
Simple, But Amazingly Sensitive - Measure One of the Universe's Fundamental Constants!
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Demonstration Rod-Mounted Pulley
This large aluminum pulley is a great alternative for Atwood’s Machine experiments.
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Light Source
A handy addition to your optical bench, this light source features a 7.5 watt incandescent lamp plus a cord and plug for connection to 110 VAC power source.
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Replacement Accesssories for Spectra of the Elements Kit
The replacement chemicals kit contains 5g each of calcium chloride, cupric chloride, cupric nitrate, lithium chloride, potassium chloride, potassium nitrate, sodium bicarbonate, sodium chloride, strontium chloride and strontium nitrate.
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Air Strike Catapult
Air Strike™ desktop catapult can launch the included foam balls as far as 40 feet. Simple to assemble, no tools required. Features super grip suction cups and a pivoting launch base.
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Visual Scientifics Backboard
This backboard mounts directly to the Visual Scientifics base, enhancing video analysis.
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Friction Block
Explore the factors that affect frictional force. One wide and one narrow face of this block are covered with a non-skid material.
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Acceleration Trolley
Show your students how the rate of acceleration of an object depends on the angle of incline with this great hands-on activity.
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K’NEX Education Intro to Simple Machines: Levers and Pulleys
Identify All Three Classes of Levers and Their Key Parts
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Moving Motion
WARNING: CHOKING HAZARD–Small Parts. Not for children under 3 years due to small parts and small balls.
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Refraction Blocks
Rectangular blocks in a variety of sizes and are designed for use as an index of refraction plate.
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Laser Reflection Sensor
Sensor for triggering the digital counter in time measurements on moving objects. Suitable for opto electronic scanning of light and dark markings on moving objects or in conjunction with a reflecting foil to form a wide spaced obstruction sensor. The intensity of the laser beam is adjusted automatically according to the distance of the object. Includes reflecting foil, stand rod with screw thread, and connector lead with 8 pin miniDIN plugs.