This digital pocket scale provides economical weighing to the nearest 0.1 g.

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This is an inexpensive, firm-density polystyrene board (like hard, closed-cell styrofoam) that is designed for spreading insect wings prior to mounting.

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This large plain dogfish shark specimen is 22"-27" long and ideal for an advanced dissection. A dogfish shark dissection provides an engaging, hands-on way for students to learn about an interesting marine specimen!

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This high-quality borosilicate glass petri dish is designed for repeated sterilization and reuse.

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This 2000 ml PYREX low-form Griffin beaker is used in professional labs. It is made from low expansion, Type 1, class A borosilicate glass that can be heated directly in an open flame.

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These aluminum weighing boats or weighing dishes have multiple lab uses.

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These size small nitrile gloves are stronger than typical latex gloves and perfect for those with latex allergies.

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30 g bottle of anhydrous lithium chloride. Observe lithium chloride's unique light spectrum with our Spectroscope Analysis Kit, and find the lithium chloride formula, common lithium chloride uses, and more below!

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Dissect larger specimens, like fetal pigs, sharks, and sheep plucks, with a 12" x 15" Styrofoam dissection tray.

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Carbon steel sterile No. 22 scalpel blades. Individually wrapped. Use with #4 scalpel handle.

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This large molecular model set is designed for instructor demonstrations of large organic and inorganic molecule models or for classroom use.

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This 250 ml graduated cylinder is our best glassware, made from thermally-stable borosilicate glass.

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This assortment pack contains five Pyrex brand griffin beakers, ranging from 50 ml to 1000 ml.

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Home Science Tools screw style 6-volt battery. Great for electricity and circuit labs!

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This smaller molecular model set is just right for individual student use to better understand the structure of both organic and inorganic molecules.

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This digital pH meter is a quick and easy way to accurately measure the pH of aqueous (water) solutions, whether in an aquarium or science project!

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30 g bottle of potassium chloride. Take a look at the table below to see the potassium chloride formula, density & more! You can also observe potassium chloride's unique light spectrum with our Spectroscope Analysis Kit.

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This mini tabletop centrifuge is perfect for use in small labs.

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This tuning fork resonates at a set pitch when tapped.

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This rock collection a student identification pack designed to complement the Washington School Collection, although it's also great to test your identification skills with.

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This special dual function push pull scale or dynamometer provides the flexibility to measure either pull or push forces.

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A 20-pack of polystrene Petri dishes with lids that measure 55 mm x 15 mm. These culture plates are disposable and not autoclavable.

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Protect yourself from chemical spills with this heavy 8 mil (0.008 in) clear apron with sewn edges.

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Use this set of 10 density cubes to demonstrate the density differences of various materials and experiment with mass, density, specific gravity, and buoyancy.

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This 30 mL bottle of hydrochloric acid is a concentrated 32-36% solution (10.2 – 11.65 Molar). This chemical has a wide variety of uses! Hydrochloric acid is corrosive and is a poison; please read warning labels carefully.

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This uterus contains an embryo typically 2"-6" in length and allows for the study of the uterus, embryo, placenta, and umbilical attachment of a large mammal. This is a plain preserved specimen.

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Kostal professional-grade insect pins are excellent quality.

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Plain preserved mammal kidney specimen. This specimen provides a great hands-on experience for learning all the anatomy of the human kidney!

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Study Escherichia coli Bacteria (E. coli) with this incredible live culture! This safe strain of E. coli is commonly found in your intestine and is not the kind that causes food poisoning. Arrives in a freeze-dried pellet.

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A 2' section of flexible clear vinyl tubing.

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Ammonium nitrate is a nitrate of ammonia. This 30 g bottle of ammonium nitrate is a white crystalline solid at room temperature. Find the ammonium nitrate formula, density, its common use & more below!

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This magnesium ribbon is about 0.01" (0.25 mm) thick and 0.125" (3 mm) wide.

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Order an extra or replacement Lab Manual for the microchemistry lab kit.

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These 10 ml polypropylene cylinders have excellent chemical resistance.

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Single throw, single pole knife switch. Has screw terminals to connect wires.

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This basic glass pipet is also known as an eye dropper or pipette.

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