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Especially suitable for collective use
UPC: 710858001523
this backpack is great for practice and enrichment to keep your child learning all summer long and better prepare for the school year ahead
SKU: ERSTCR70101-3
UPC: 194629086191
Discovering Optics Slate Gray Especially suitable for collective useMPN: 006607 UPC: 713757869317 No matter how complicated a camera, a telescope, or a microscope is, it consists of one or more of these basic elements: mirrors, lenses, and prisms. Explore the principles of reflection, refraction, and the physics of how light works as you discovery all about optics. Kit includes a flexible mirror (Bonus), cylindrical double concave lens, cylindrical double convex lens, small equilateral prism, small mirror, laser, 4
