This pulley is constructed with two low-friction plastic wheels (48mm diameter), a steel housing, and hooks on both ends.

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Constructed with three low-friction plastic wheels (48mm, 38mm, and 28mm diameter),a steel housing, and hooks on both ends.

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This pair of Magdeburg hemispheres is a convenient way to demonstrate the power of atmospheric pressure and vacuum.

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Use overflow cans to measure the volume of irregular objects for density and specific gravity determinations.

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This impact car is uniquely designed to measure the force of a collision.

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This set of four different-sized gears allows you to experiment with motorized cars and equipment of your own design.

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This paper tape will work with most recording timers. It is about 17 mm wide and comes on a 150 foot roll.

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The ABS gears on the hand generator wear with use.

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This bimetallic compound bar is made of two dissimilar metals and used to demonstrate how different metals expand thermally at different rates.

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Spring scales measure weight or force by hanging an object from its hook. To measure loose material such as sand, pour into a plastic bag and hang the bag from the hook. Scale is sensitive to 20 grams.

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Special 6 mm diameter closely wound steel spring used to study the effects of potential energy and energy conservation.

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Classic demonstration of the conservation of mechanical energy.

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This kit contains everything you need for a hands-on demonstration of inertia or Newton's First Law of motion.

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Measure weight or force by hanging objects from the spring scale hook.

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The Thames & Kosmos Eco-Battery Vehicles kit teaches kids about what many believe is the future of automobiles: the electric vehicle (EV). Build 22 different eco-friendly car models & power them with a special battery!

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Shoot a 25-mm steel ball from a barrel affixed to a moving cart & watch in amazement as it drops back down into the barrel! This classic, memorable ballistic demonstration provides kids with an unforgettable intro to physics.

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