This deluxe dual-power stereo microscope provides you with 20x or 40x magnification simply by rotating the 2x/4x objective. Use it to look up close at tiny water protozoa, mineral crystals, circuit boards, and more.

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Preserve entire plants with this high-quality 12" x 18" full-size plant press.

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The special anti-fog lens on these safety goggles eliminates the frustration caused by fog build-up, so you can always see what you're working on.

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This Butterfly Garden Homeschool Edition comes with everything needed to transform 5 tiny caterpillars into butterflies. Does not contain live insects; simply use the voucher inside to redeem your FREE cup of 5 caterpillars!

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Provide eye protection for budding young scientists with these high-quality, economical, child-sized safety glasses! Fully ANSI Z87.1 certified, these glasses have strong polycarbonate lenses and adjustable nylon frames.

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The most accurate low-cost scale we can find.

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This tuning fork resonates at a set pitch when tapped.

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See light refract into miniature rainbows with this equilateral glass prism.

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This plastic adaptor turns a soda bottle into a hanging bird feeder.

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These 250 ml polypropylene cylinders have excellent chemical resistance.

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This filter paper has an 11 cm diameter, is an excellent quality, and works well as chromatography paper. Use this 10-pack of filter paper for a variety of engaging science experiments! Larger quantities are also available.

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This high speed vibrating electric motor has a speed of about 9000 rpm at 3 volts.

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Study the complexity of a trachea! This prepared slide features pseudo-stratified columnar ciliated epithelium. Non-human.

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These bright, colorful, long-lasting markers are ideal for chromatography experiments.

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This set of 10 prepared slides is designed specifically for the Switched-On Schoolhouse Biology course.

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Receive a 4-pack of either Ultralast or Dorcy brand 1.5-volt, AAA-size, alkaline batteries.

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This Orion 17mm Plossl Eyepiece upgrades all types of telescopes. For an excellent mid-power eyepiece on a budget, this one's clear crisp images make it a fast favorite.

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This deluxe microscope cleaning kit is designed to keep lenses, eyepieces, and objectives clean and in top condition.

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Four specimens on one slide: male and female heads l.s., sporophyte l.s., and protonema w.m.

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Play around with light & optics as you conduct 42 hands-on science projects in this Thames & Kosmos Optical Science Kit. With the 48-page manual & materials inside, you can make prismatic glasses, optical illusions & more!

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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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Our student insect pins are good quality and an excellent value.

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This science kit allows students to see first-hand the power of an electromagnet.

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This stomach section shows mucosa and submucosa layers.

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This human tonsil section slide exhibits lymph nodules (the ring of dark-purple ovals) and epithelial tissue.

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Four specimens on one slide: root cs.; 1-year stem c.s., male cone c.s., and female cone c.s.

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Multi-stained to show the general structure of a corn seed with developing embryo.

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This human liver section shows bile-secreting hepatocytes (the tiniest purple dots are their nuclei) and bile canaliculi, the winding "canals" that carry along the bile.

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