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Build Your Own Crystal Radio
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
A good basic kit with everything you need to build a very simple crystal radio. This is not hi-tech hi-fi. Geared for ages eight and up, it is a complete kit with wonderfully straight forward instructions which walk the experimenter through hooking up tuning needle, crystal diode, and earphone, and experimenting to find useful antennas. Excellent education, recreation and discovery device all at the same time. A simple kit with hours of fun in it.
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88028 CRYSTAL RADIO KIT |
It's A Snap!
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
with our best selling electronics kit. Build 100 or more electronic projects from a Reflection Detector to a Simple Salt Water Alarm with Snap Circuits Jr. The Elenco kit, a Dr. Toy Winner, has a grid base and a selection of conductors, resistors, switches, integrated circuits and more, for a total of (30) color-coded snap-in parts. For ages 8 to 108, the easy-to-use components and well-designed instruction manual make this a perfect way to spend some quality time with a bright young child! AWARDS: The National Parenting Center-Seal of Approval, Dr. Toy 100 Best Children's Products, Dr Toy Best Educational Products.
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92133 SNAP CIRCUIT JR |
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Digital Multimeter
3-1/2 digit LCD electrical multimeter with a max reading of 1999. Measures (5) ranges of DC, (2) ranges of AC voltage both to 500 V, (5) ranges of resistance to 200K ohms, DC current to 10 Amp., diode test, transistor and battery test. A pocket sized 2-7/8" x 5-3/4" x 1-1/2", it comes complete with test leads and 9 volt battery. The best value for this size we have seen.
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89416 DIGITAL MULTIMETER |
Portable Oscilloscope
The Velleman HPS10 Personal Scope isn't some graphical multimeter -- it's the complete, portable, affordable oscilloscope you've been waiting for! The 10MHz oscilloscope has an analog bandwidth of up to 2mhz. It has 5mV to 20V/div sensitivity in 12 steps, and a 200ns to 1 hour/div time base in 32 steps, full automatic setup, and 5 different trigger modes. It measures dBm, dBV, DC and rms, has signal markers for Volt and Time, and 2 memories to store signals. It has an X and Y position shift signal, DVM readout with x10 option, and audio power calculation (rms and peak). Easy to use and, with a high-contrast LCD display (128 x 64 pixels), easy to read. Accurate enough for professional use on automotive and audio equipment, digital signals and various types of sensors, but priced low enough for educational and hobby applications. Requires (5) "AA" batteries or a 9V adapter (not included).
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92223 OSCILLOSCOPE |
Suchomimus Claw
This 10" claw belonged to Suchomimus Tenerensis, the largest and most common predator of its day. A fish-eater, Suchomimus used its menacing claws to slice through water and snare its unsuspecting prey. Hand-cast and painted from original fossil molds.
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92594 SUCHOMIMUS CLAW |
SuperCroc Tooth
This 5" long tooth was the largest in the giant croc's 6' long skull. Sarcosuchus imperator, or SuperCroc, grew to be 40-feet-long. Its strong teeth were perfect for grabbing land animals-including dinosaurs-and pulling them to a watery death. Hand-cast and painted from original fossil molds.
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92595 SUPERCROC TOOTH |
Fun In The Sun
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Just what can solar power…power? Find out with RobotiKits 6 In 1 Educational Solar Kit that comes with one solar module and one gear box, and 21 snap-together plastic parts. No tools required. Build 6 different solar-powered models (windmill, revolving plane, airboat, plane, car, solar puppy) or one of your own. Assembled units are roughly 4" across, in varying heights. For age 10 and up.
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93873 6 IN 1 SOLAR ROBOTIKITS |
The Boy Scientist Book
Pay no attention to The Boy Scientist Book title, particularly if you have a girl scientist at home with access to chemicals or electricity. You get 240 well-written pages of 160 "extraordinary experiments & adventures" from the editors of Popular Mechanics. Topics include lab tools and techniques, measurement, electricity, motive force, chemistry and physics. In a sturdy soft-cover, with tons of illustrations.
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94036 BOY SCIENTIST BOOK |
Chemistry For Dangerous Boys
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Dangerous girls are also free to use this Classic Chemistry Set from Thames and Kosmos, based on The Dangerous Book for Boys series. Includes a 32-page manual, (2) test tubes, cardboard rack, stopper, measuring spoon, (2) pipets, goggles, cups with lids, ping-pong ball, straws, (14) brads, (2) graphite rods and 12g vials of sodium carbonate, potassium hexacyanoferrate and ferric ammonium sulfate. You add common household items. Made in Germany. For ages 8 and up with adult supervision.
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94062 CHEMISTRY SET |
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Unleash Some Serious Fun
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Nothing says chemistry like fizzing, bubbling, glowing flasks and this Extreme Secret Formula Lab kit provides all that and more. From SMARTLAB®, it includes (20) experiments that feature "mad lab" fun, including foam and harmless fumes. Includes (2) plastic flasks, a beaker and mixing bowl, small pipet, stand, funnel, 8g of glow-in-the-dark zinc sulphide powder and a 24-page instruction booklet. You add a few common household items and an assistant named Igor. For ages 8 and up.
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94184 SMARTLAB SECRET FORMULA LAB KIT |
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