Item Number :
(470344-550)
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Item Number :
(470328-080)
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Double Convex Lens, Spherical, Optically Worked Glass Lens - with Ground Edges, Polished - optically true lens is excellent for physics classroom demonstrations in optics and light refraction, size: 50mm focal length, 13mm thick, Lens measures 2in diameter, 0.1 weight
Item Number :
(470345-118)
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Item Number :
(470328-096)
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Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 250 mm focal length, Lens measures 3in diameter, 0.2 weight
Item Number :
(470344-182)
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Item Number :
(470328-068)
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Double Convex Lens, Spherical, Optically Worked Glass Lens - with Ground Edges, Polished - optically true lens is excellent for physics classroom demonstrations in optics and light refraction, size: 150mm focal length, 12mm thick, Lens measures 3in diameter, 0.2 weight
Item Number :
(470344-090)
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Item Number :
(470129-166)
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DVD - Reclamation restoring the land
Item Number :
(470122-924)
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DVD Earth Science the Banded Stilt, DVD Show Me Science Advanced - Astronomy and Space Astronomy and Space-X-Ray Invisible Astronomy
Item Number :
(470128-712)
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DVD - Pollution
Item Number :
(470343-912)
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Item Number :
(470345-410)
REVIEWS (0)
Item Number :
(470344-402)
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Item Number :
(470015-970)
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Item Number :
(470345-754)
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Item Number :
(470345-518)
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