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Rainbow Bouncer
Plastic disc, 2-1/4" dia with a diffraction grating face. Place the disc in the sunlight, and it will reflect a myriad of rainbow splashes on a wall, ceiling, screen etc. Neat!
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88884 RAINBOW BOUNCER |
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Chemiluminescence Kit
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 |
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Gyroscope
2" flywheel in well made metal frame. The trick is the same as it has been for 100 years. Wind the string through the spindle, pull it firmly to set the flywheel spinning, and perform effortless balancing magic on pencil tips, string tightropes, and the like. We tend to forget that bicycles and aircraft navigation both rely heavily on gyroscopic principles. It's never too early to tell the kids. Besides, it's fun.
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3804 METAL GYROSCOPE |
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Scope Your Stethos!!
Stethos is Greek for chest. Indeed you can scope your stethos with this stethoscope, or your friend's or your dog's. But it works equally well for picking up any sound being transmitted through a solid medium. Listen to the air flowing through the heating ducts, the water in the pipes, the sounds of machinery, the termites munching on the floor joists!! The color does vary so we will select from what's currently available. We've had blue, teal, red, black, burgandy, green and purple, but there may be other colors yet to be seen! A great discovery device whether for biology or other pursuits. Not of professional quality, but not just a toy.
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11077 STETHOSCOPE |
Brain Benders
A box of illusions: make big objects look small, and small objects look big; change black and white into color; turn drawings into old-style movies - just for starters. You get a motorized zoetrope/spinner with discs and strips, and a really amazing "altered perspective chamber," along with directions for a dozen optical activities. It's really mind-bending - but don't forget to buy (2) "AA" batteries for the zoetrope. Spinning it by hand just doesn't work as well! For ages 8 to adult.
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91773 OPTICAL ILLUSIONS |
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Learn A Trade
Learn geometry, or learn to build the world’s coolest sand castles. Our each is a set of (4) geometric shapes in brightly colored transparent plastic. The set of (4) includes a 3–7/8” cube, a 3–7/8” x 3–7/8” x 1–15/16” rectangular box, a 3-7/8" dia x 3-7/8" cone and a pyramid with a 3–7/8” sq base. All shapes are open on the bottom, the better to get the sand into them. And out of them.
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31712 SET OF 4 SHAPES |
Harry Potter’s Science Made Simple
Care to sneak a little scientific education in with all the Hogwart’s wizardry? For ages 8 and up, the Simple Physics kit explains some basics with a few props (balls and sticks) and a binder-ready guide to experiments that appear to be spells and magic. The Astronomy kit includes a nice guide to the basics, including a constellation map, plus instructions and real lenses for constructing a simple telescope. All with appropriate Hogwarts insignia.
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35930 #7 ASTRONOMY | |
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35931 #8 SIMPLE PHYSICS |
Eclipse-Grade Shades
"Not a toy," they say, and they're right. These are disposable, cardboard-frame sunglasses with the all-but-opaque lenses necessary for solar viewing. As we write this, the next solar eclipse is in Brazil-pack these.
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91841 ECLIPSE EYESHADES |
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I Dive…
therefore I am. Rene Descartes didn't limit his thinking to, well, just thinking. He also created the Cartesian diver. Our version is science crossed with a fun little game of skill. You supply a plastic 1-liter bottle, we supply the plastic pipettes, wires, brass nuts and instructions, which, if you follow them carefully, will have you sending a diver to the bottom of the bottle trying to hook a sinker. No wagering, please.
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89236 UNDERWATER HOOK |
$3.25
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Mini Driver!
Singer, songwriter, enchanting actress in "Good Will Hunting," "Owning Mahowny," and…what? Oh. Sorry. Not that Minnie Driver. This one is a really nice driver set, with a 4" long handle and a clutch that holds an extendable 4" steel shaft with a magnetic bit holder on the end. Includes (20) small steel bits, including flatheads 1, 1.5, 2, 2.5, 3 and 4mm wide; #000, #00, #0, and #1 Phillips bits; a second set of Phillips bits at #0 and #1; and T5, T6, T7, T8, T9, T10, T15 and T20 torx bits, all 1" long with 1/8" hex shafts. Driver also comes with a nice storage case…but sadly, it didn't appear opposite David Duchovny in "Return to Me."
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93091 DRIVER SET |
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Grow an emerald, amethyst and a citrine!
These kits for ages 10 up contain everything you need to grow green, purple or yellow crystals. Follow the easy instructions and watch them start to form in just a few hours. Great project for the classroom. Even better as a rainy day at home activity! You'll get one of each type with our package of (3).
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93363 CRYSTAL KIT SET |
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