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This is the crystal violet stain used for the Gram's bacteria staining technique. Use this 15 ml bottle of crystal violet Hucker's to stain bacteria a purple color! Find its density, formula, and more below.
Ages 12+
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Item ships to the United States only.
This small plastic jar is a good substitute for experiments that ask for baby-food jars.
Ages 5+
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Study Bacillus substilis, the intestinal bacteria commonly used in labs, with this live, freeze-dried culture in pellet form.
Ages 13+
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This item only ships to a street address in the 50 US states.
This 1" diameter semi-permeable dialysis tubing is ideal for osmosis or diffusion experiments.
Ages 12+
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Liebig condensers are used to cool and condense hot vapor as part of a distillation apparatus.
Ages 14+
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Approximately 100 seeds in 22 g packet.
Ages 5+
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This set of four mini pulleys allows you to experiment with motorized cars and equipment of your own design.
Ages 8+
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This double-tandem pulley is made with low-friction plastic wheels. Ideal for physics experiments or learning about simple machines.
Ages 8+
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This 38mm plastic pulley is mounted on a rod.
Ages 8+
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This tuning fork resonates at a set pitch (G) when tapped. You can also order a percussion hammer for striking tuning forks.
Ages 7+
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You get a package of two 24/29 standard taper ground-glass stoppers.
Ages 14+
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Infrared thermometers are an amazingly easily way to measure temperature.
Ages 11+
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Use this 30 ml bottle of concentrated liquid laundry starch for a wide variety of science experiments!
Ages 12+
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This flexible steel retractable tape measure ideally meets most experimental measurement needs.
Ages 7+
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These No. 6 lab-grade corks fit our extra-large 20 mm x 150 mm test tubes.
Ages 5+
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Explore circuits with a 400 Point Solderless Plug-In Breadboard! Study series and parallel circuits and the function of different electrical components.
Ages 10+
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This natural sponge can be used to learn more about the skeletal structure of animals in the phylum Porifera.
Ages 6+
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Styrofoam ball, 1.5" diameter, individual, for science experiments.
Ages 5+
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By Fred Bohensky. A complete manual that clearly identifies and describes all systems in detail.
Ages 11+
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Peat moss is used as a soil alternative for growing plants and plant growth experiments.
Ages 6+
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This 6" digital caliper makes fast, easy work of precision measurements.
Ages 11+
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Glo Germ™ powder is used to effectively demonstrate how germs are spread through cross contamination.
Ages 10+
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Attaches to all 4.8 mm ID tubing.
Ages 8+
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Use this 250 ml distilling flask to perform simple distillations cost effectively.
Ages 14+
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All our lenses and circular mirrors are 38 mm in diameter. The focal length (f/l) is noted for each.
Ages 11+
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Granular sodium bisulfite (sodium hydrogen sulfite) in a 30 g bottle. Check out the table below to discover the sodium bisulfite formula, density, storage code, and more!
Ages 12+
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Made from neoprene/latex for good chemical resistance.
Ages 11+
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Designed to increase safety, the scalpel functions like a click pen, retracting the sharp blade when not in use.
Ages 11+
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This polypropylene plastic graduated cylinder has excellent chemical resistance.
Ages 8+
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Useful accessory for a propane Bunsen burner.
Ages 11+
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This unique Universal Test Tube rack can be rotated to hold tubes of different sizes.
Ages 8+
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This 500 ml polypropylene lab pitcher is similar to a beaker in shape but with a study handle and larger spout for easy pouring.
Ages 5+
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Standard 6" semi-circle clear plastic protractor.
Ages 8+
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We get it. Science can be messy. But Home Science Tools' products and service can handle it.
Our products are durable, reliable, and affordable to take you from the field to the lab to the kitchen. They won't let you down, no matter what they're up against. Whether it's (over)eager young scientists year after year, or rigorous requirements that come once-in-a lifetime.
And if your science inquiry doesn't go as expected, you can expect our customer service team to help. Count on friendly voices at the other end of the phone and expert advice in your inbox. They're not happy until you are.
Bottom line? We guarantee our products and service won't mess up your science study—no matter how messy it gets.
Questions? Get in touch with our Customer Service team.