
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
The Cool Blue Light Experiment Kit uses copper sulfate, perborate and luminol to produce light from the energy released in a chemical reaction. The instructions recommend this kit for experimenters nine years old and up, with adult supervision. Some experiments call for the addition of household chemicals like chlorine bleach, hydrogen peroxide or sugar.
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90154 COOL BLUE LIGHT KIT |
The classic swinging balls, to amuse you on slow days in the office or physics lab, and to demonstrate Newton's Third Law. Drop one of the five hanging balls, one flies out from the other end; drop two and two fly out; drop three and it's amazing. The balls are set in a 7" x 9" x 9" high wooden frame. Isaac didn't invent these mesmerizing toys, by the way. That took Simon Prebble (whom some of you may remember as the evil Martin Chedwyn on "As the World Turns") who had an energy transference inspiration in 1967. (Where else can one learn these things?)
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33739 WOOD FRAME BALLS |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Two educational Science Kits that kids will love! Fun projects. Great boxes. Instructive instructions! Secret Codes teaches cryptography with invisible ink markers, decoder wheels, spy manuals and more. Fingerprint Files includes the history of fingerprints, and all you'll need to take them, using actual police and FBI methods, and dust surfaces for matching prints. Very nice as small gifts, or for home schooling. Both are for ages 8 and up.
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91776 FINGERPRINT FILES | |
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91775 SECRET CODES |
$4.95
EACH
Out of Stock. Check Back Soon! |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Triops: way cooler, bigger and more active than sea monkeys. They're dinosaur shrimp, leftovers from some 200 million years ago. Don't eat them; just grow them and enjoy this bizarre & ancient display of nature! You get a kidney-shaped tank 2-3/8" tall x 8-1/2"x 5-3/4", a very informative instruction booklet, and a packet full of triops eggs and food. Add the eggs to water and watch them go; they'll hatch in a day and reach 1" to 2" or more in a few weeks. Really easy to do, and really cool too.
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91047 TRIOPS KIT |
You know all those A.S.&S. catalog items that call for AG13 button-cell batteries? We've got ya covered. Our each is a package of (10) 1.5 volt AG13s (AKA A76s, LR44s, V13Gas, and RW82s).
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92524 AG13 BATTERIES |
Straight from the hand of Nature, and Scott Resources, comes this boxed collection of (15) 1" to 1-1/2" fluorescent mineral specimens, such as hackmanite, turritella agate, aragonite, travertine, willemite, resinous coal, selenite gypsum, fluorite, calcite, scapolite var. Wernerite and fossil algae. All are very interesting, and a few colors really pop under ordinary blacklight -- but we have to admit that today's fluorescent paints and laser shows have spoiled us for the more subtle glow of a rock. Buy these for their educational value, not their dramatic display.
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93007 FLUOR MINERALS |
That's for entymological pins if you're not in the business of mounting butterflies and their little friends, but these black enameled pins are longer, stronger and thinner than regular straight pins, and are used widely by artists, galleries, lace-makers, surgeons, taxidermists and other folks with a need for ultra-thin, coated pins. These are size #0, 38mm (approx 1-1/2") long x 0.35 mm (.0137 in) dia. Available in packages of (20) or purchase (100) at a discounted price.
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93288P20 BLACK PINS | |
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93288P100 BLACK PINS (PKG 100) |
The pentapack: You get (5) 3V lithium coin cell batteries, CR2032, still in their packaging, for a price that looks like a single battery, because you're smart enough to shop here.
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93242 LITHIUM BATTERIES |
Floor model, rated for 12VDC 3.3A and comes with a 4-1/2-foot lead with a choke and a positive center, 5.5mm female plug. Measures 4-1/4" x 2-3/4" x 1-1/8" OA. You supply your own female IEC power cord. UL.
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37858 12 VDC ADAPTER |
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