Weight, 500 g, with hook

Create your own Solar System, discover forces of the universe, and expand your understanding of Newton's Law of Gravitation with Coulomb's Law! Learn how physicists today study the smallest particles in the universe in this physics kit.

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Explore the physics of refraction using a laser pointer and an acrylic prism.

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Set of six glass lenses used to demonstrate optical properties.

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Use this rock tumbler grit kit to transform rough rocks into smooth, shiny collectibles! Contains different grits & polishes for professional-quality four-stage rock tumbling. Tumble & polish up to 12 pounds of rock!

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Classic demonstration of the conservation of mechanical energy.

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These top-opening glassine evelopes are preferred by insect collectors.

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This steel hooked weight is painted with black enamel and is accurate to +/- 1%.

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This metal burette clamp attaches to a ring stand to hold a single glass burette, test tube, flask, etc. for chemistry labs.

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This is a standard 5 x 5" glass plate with ground edges for safety.

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A high quality hooked weight set for a variety of physical science experiments! Includes the following hooked weights: one 10 g, two 20 g, one 50 g, one 100 g, two 200 g, one 500 g, and one 1000 g.

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