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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 |
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Soil Test Kits
The budding home scientist and horticulturist will both delight in the ease with which this self contained soil test kit brings discovery. The kit measures not only ph., but also Nitrogen, Phosphate and Potash content and contains material for 40 tests. Since these are the essential ingredients affecting plant nutrition, we see a science project in the making: experimental plant growth in soils with different amounts of acidity and/or nutrients. From Luster Leaf(tm), the kit is entirely self contained and includes complete instructions for use and explanations. Be careful, please, the kit does have chemicals and should not be used by young children without supervision.
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88690 MULTI SOIL TEST KIT |
Motor Along
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Everything you need to build a little DC motor is included in this kit (except sandpaper, screwdriver, scissors and, of course, an AA battery). The instructions are simple and explain the theory as well as assembly. Fun and educational.
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91508 TOY MOTOR KIT |
Diving Submarine
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Back in the days when technology was a good guy, kids got diving submarines that they charged with baking powder and played with in the bath tub. Now kids can have the same fun again. We have found a (gray!) submarine, about 3" long, that can dive and surface up to a dozen times with a single charge of the baking powder that you get to supply. Comes with instructions.
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89189 UNDERSEA EXPLORER |
Catch Some Rays
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
And teach a kid (8 and up) the basics of solar power. This excellent educational kit from Elenco comes with (9) 0.5VDC solar cells pre-wired in sets of (3) and mounted in a 5" x 4" x 7/16" black-plastic frame with screw terminals on the bottom. The kit includes a 1.5VDC motor with leads and a mount, a fan blade and (4) plastic discs from 5/8" dia to 2" dia for mounting on the motor shaft, a 1.5V incandescent bulb with leads, a sound module with leads, and graphic cards to mount on the discs. Comes with a 14-page instruction/experiment booklet, including info on increasing voltage and amperage, powering battery charges, radios, games, etc. Lots of science project potential. "Heuristic as all get-out," Jarvis said when he saw it.
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92923 SOLAR KIT |
Why The Blank Face?
So you can decorate it, you crafty thing. This tan-colored papier mache mask is 8-3/8" tall x 5-3/8" wide at the eyes, pretty much the size of your average human face. The side curves around so the mask is 1-3/8" deep. The material is 1/32" thick and very sturdy. Not crafty? Left unpainted, the mask has a certain spooky charm.
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93085 PAPER MACHE MASK |
Accountant In A Jar
Or in the lid, actually. Jobar's Money Machine is a clever little bank that counts your change as you put it through the slot on top, and keeps a running total up to $999.99. (That's more than the jar will hold, of course, but you could always attach the lid to a 55-gallon drum.) Measures 6-3/4" tall x 3-1/2" dia in clear plastic, and you add a pair of "AA" batteries. Counts quarters, nickels, dimes, and pennies only.
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93475 MONEY MACHINE |
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