
But science teachers can't work without them. Experiment with this good-quality manual vacuum pump made of durable polychloroethylene plastic. Works with a pistol-grip action and pulls up to 2" Hg. Includes a 17" length of clear vinyl, 1/4" ID tubing, and a release valve.
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93305 VACUUM HOME PUMP |
Wanna stir up a little trouble? We've got just the tool. Our solid glass stirring rod is 8" long x 3/16" dia. Flat ends. Perfect for mixing a scientific formula, a perfect martini or a jar of tempera paint.
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88222 GLASS ROD |
Here’s a fine pair of nylon bristle brushes, just perfect for cleaning test tubes, aquarium filter tubes or your favorite long-necked soda bottle. The smaller brush is 8-1/2” long with a 1/2" dia. while the larger is 10-1/2” overall with a 1-3/8” dia. The bristle area for both is approx. 3-1/2” long.
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88221 LG TEST TUBE BRUSH | |
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88220 SM TEST TUBE BRUSH |
Agar; it's not just a crossword puzzle answer. It's the medium of choice for growing bacteria, molds, etc., and just what you need if you're shopping for laboratory staples or for your next science-fair project. Melt the medium in a microwave, pour into a Petri dish, and allow to set before applying test material. Do not freeze, and after exposure or melting, store at the temperature on the label.
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93064 SOY AGAR |
There's a tool for everything. Think post-hole diggers for a model railroad layout. All right, all right. Think cork borers for all those solid corks and rubber stoppers in laboratories, the ones that need holes for glass and rubber tubing. Our each is a set of (3) 3-3/4" long brass tubes with sharpened ends and red-plastic T-handles. Diameters are 9/32", 7/32" and 5/32". They're nested on the 4-3/4" pin used to clear the plug from the tube.
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92051 CORK BORER |
Just squeeze it and the medivac chopper is on the way. Kidding. It's a pink rubber evacuation bulb for use with 50ml or 100ml pipettes. Has a 2" dia bulb and 2-1/4" ID x 1/2" OD ports at right angles to each other. It's 4-5/8" long OA and the ports are marked with the direction of flow. Made by clever Germans.
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37776 EVAC BULB |
Be the first kid on the block to grow your own penicillin. This vial of powdered agar contains enough for 10-12 plates, 1/8" deep. It includes instructions (for cooking up the agar, not for growing penicillin). Order our package of (20) sterile petri dishes (Item #52554), and knock their socks off at the next science fair.
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91883 AGAR |
On a slightly convex aluminum plate, with small mounting holes top and bottom. Our glass alcohol thermometer measures between -30° and 230°F in 2° increments and between -30° and 110°C in 1° increments. The unit measures 6-1/2" x 1-1/16" with a 4-3/4" long element. Made for the laboratory, but nicely readable and able to hang on your wall without looking like part of a weather station.
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93226 METAL THERMOMETER |
Use straight pins to position specimens in this slope-sided 11-1/4" x 7-3/8" x 1-3/8" deep aluminum dissection tray. A 3/8" layer of black wax covers the bottom. Excellent addition to the laboratory or classroom.
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91770 DISSECTION TRAY |
"Plastic..." A quad of blue transparent measuring cups. Identical in shape, but with varying capacities, we hope they will go out into the world and benefit society, your lab or your home, each in their own way. The 250 ml and 125 ml cups are graduated in 25 ml increments; the 50 ml, in 10 ml; and the 25 ml, in 5 ml increments. Ranging roughly from 1-1/2" dia x 1-1/2" tall to 3" dia x 3" tall, all have pour spouts, handles with peg holes and nest inside one another; Sets of (4), you'll receive (2) sets. Handsome and utilitarian, they are ready to take stock in themselves, working for and within your community!
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23923 BLUE MEASURING CUPS |
Each non-sterile transfer pipet measures 6-1/8" long, with a 1mm mouth, a 3/16" dia neck, and a 1/2" dia bulb. It holds 3.5ml and is graduated up to 1ml in .25ml increments. Made for a laboratory, of course, but equally useful in the kitchen, for portioning out that aceto balsamico tradizionale di Modena you paid $80 an ounce for.
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93478 PIPET |
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