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Catch Some Rays

Warning!  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 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.

92923 SOLAR KIT
$17.95 EACH

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Selaginella Lepidophylla

Aka Club Moss, Aka Dinosaur Plant. This innocent little plant will unfold into full lush green foliage when placed in a small bowl of water over night. If removed from the water it will roll up into a dead looking little brown ball. And it will perform the act over and over again. Just as it has ever since dinos roamed the earth. Fun for all!

88832 DINOSAUR PLANT
$5.50 EACH

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My, What A Deep Voice You Have!

Our little electronic voice-modulating kit is perfect for wolves imitating grandmothers as well as for robotic voices, party tricks, karaoke enhancement, or hiding from your mother when she calls. Medium level electronics knowledge and some soldering required (solder not included). Has a module with high, low, robot and vibrato modes, which means you too can sound like Whitney Houston, sort of. Includes an electronic microphone. You add a 9V battery and a small 4-ohm speaker (although it can be wired to use a line-out). Draws 300mA at 9VDC and is based on an HT8950 chip.

93492 VOICE CHANGER
$18.95 EACH

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Sunprint® Kit

Sunprints (or cyanotypes, or photograms) are everyone's favorite photo-sensitivity experiment, from third-graders to graphic artists and fine artists. You pick: The Sunprinters are a dozen 3-15/16" square sheets of photosensitive paper, an acrylic backing sheet and instructions. The large Sunprint Kit has (15) sheets of 12" x 7-3/4" photosensitive paper plus a clear acrylic sheet of the same size. Great for classroom demonstrations, and can be used to make prints from photo negatives as well as interesting effects from opaque or translucent objects. All you add is sunshine and water.

93519 SUNPRINT KIT, LARGE
$14.95 EACH
3805 SUNPRINTERS
$6.95 EACH

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Green Science

Warning!  WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.

Harness the power of the wind, lemons, potatoes or mud. The Windmill Generator has a generator and propeller with (6) 5-3/8” wide blades and a tail. Minimal assembly is required to mount them on a large soda bottle (easier than building a tower, but you could do that, too) and watch the wind light up the LEDs. The Enviro-Battery Kit has copper and zinc plates, cups, an LED monitor on a little tower, sound module, LCD clock plus wire and tape. You perform (6) different battery experiments, plus many more suggested in the included book, and yes, a mud battery is among them.

93611 BATTERY KIT
$11.95 EACH
93612 WIND KIT
$11.95 EACH

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