 Highly rated by both Sky & Telescope and Astronomy Magazine -- Ideal for long range viewing in the sky or on land.The legendary Oberwerk, Long-Range Observation Binocular now with 100mm semi-apochromat triplet objectives (each objective is 4" in diameter), and fully broadband multi-coated optics is the ultimate optical instrument for terrestrial observation as well as astronomical viewing. -- Once only available for military use, this advanced binocular makes the most of any view. Rotating ocular turrets a... more
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 This T-shirt features a cartoon by Nick Kim that's a clever tribute to ionic chemistry. The caption reads: "Just what is it outside that window that you gentlemen find so attractive?
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 From A to Z, this kit has it all! -- From astronomy to zoology, this comprehensive kit has everything a young scientist needs to explore how the universe works. This kit contains 100 experiments you can perform. -- Learn how to conduct experiments like the professionals with special laboratory instruments and materials including a telescope, beaker, compass, test tubes, optical prism, bright LEDs, bug viewer, generator flashlight, rock samples, and more. -- The beautifully illustrated, full-color step-by-... more
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 Industrial grade cabinets feature high density, urethane insulation to minimize operating costs. The high strength counterblanced lids, adjustable temperature controls, and quiet, hermetically-sealed refrigeration compressors offer durability and extreme usability. Temperature range: -4 to -20ºC. Capacity: 198L. 115V, 60Hz. Size: 35"L x 31 1/2"W x 24 1/2"H.
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 100% nylon. Size: 18"L x 10"W x 10"H.
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 The drawstring close of these muslin field collecting bags assures quick closure for the safety of collector and collected.
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 There’ll be a gold rush in your classroom when your students use our exclusive lab activity. The specially prepared sediment provided contains fool’s gold fines in a bulk matrix. Students will use panning techniques to separate the “gold” from the sediment. In the process, they learn about mineral density and heavy mineral prospecting. It comes with a 1/2 gallon (approximately 6 lbs.) of sediment and instructions on panning. A gold pan, required, is available separately.
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 Although both balls are identical in shape, the “happy” ball rebounds very well while the “unhappy” ball does not. Several experiments involving the simple bounce and roll of these balls demonstrate repulsion and inelasticity. The two balls come with instructions.
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 All three sets – Know Your Minerals, Know Your Rocks, and Know Your Fossils – are available in one convenient, economical package. Each set is housed in its own compartmented collection box and comes with a comprehensive study guide.
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 Large polished fossil nautiloid showing sutures in matrix; suitable for display. 6"–8". Morocco.
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