
Decidedly clever little gizmo, reminiscent of our ever popular Tornado Tube. It consists of a plastic sleeve into which one screws two empty 2-liter soda bottles. Inserted into this connecting tube are two clear plastic "straws", one extending toward the bottom of each bottle. Fill one bottle 3/4 full of water, colored if you like, invert the duo, and watch water spew from the top end of the top "straw". It's all because of the vacuum created as water drains from one bottle to the other, and is a good physics demonstration item. But it looks as though the water defies gravity. Amaze everyone at your next party! Highly recommended for anyone who enjoys a "Tornado Tube".
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89034 FOUNTAIN CONNECTION |
Plastic goodie bags, 6" x 9" , that you wouldn't buy at the party shop because they're too expensive. Check out our price. Most have a birthday party theme, we'll send you an assorted package of (50). If you're really obsessive you could spend hours figuring which kid gets the Bozo(r) bag, who gets the ballerina bag, who gets Popeye(c) or Paddington(tm), the airplanes or the dinosaurs. All bags are printed on white plastic, and have handles that could slip over a hook or knob.
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27133 GOODIE BAGS |
A pair of shades with the outer portion of each lens half silvered on the eyeball side. Glance left or right and see behind you. Cool undercover item for the younger sleuth or the dirty old man on the beach who doesn't want to be discovered. Whatever your motive, you need a pair now.
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90338 REARVIEW GLASSES |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
A trio of the best science education kits we have seen dealing with electricity, magnetism, motors and generators. The 44 page instruction booklets are educational and complete; state problem, approach and explain what is happening for a series of projects of graded difficulty. The Motor/Generator kit includes several introductory experiments on magnetism as well as six complete motor generator projects. The Electromagnet kit provides experiments including the building of an electromagnet, a doorbell chime, a telegraph, a relay and an electric catapult. The Levitation Set experiments with magnetic fields, gravity, and equilibrium; plus everything you need to build a magnetic levitation train! All are complete except for batteries. Strongly recommended for their quality, the accuracy of their science and the interest they will sustain. Ages 10-18.
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89339 ELECTROMAGNET KIT | |
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89714 MAGNET LEVITATION KIT | |
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89338 MOTOR/GENERATOR KIT |
Chemically treated paper strips to test for acid or base (alkaline) solutions. Use the blue for acids, the red for bases. The more sophisticated pH test paper strip indicates pH from 1 (bright red) to 14 (dark brown). Values in between can be read by comparing with a color chart that comes with the strips. All have (100) strips of test paper per vial.
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88217 BLUE LITMUS PAPER | |
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88219 HYDRION PH PAPER | |
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88218 RED LITMUS PAPER |
See psychedelic patterns the safe way! Press your hand on this 6" x 6" sheet of liquid crystal and leave a print of swirling colors that, like the mood ring of yore, you can use as a sign of your mood. The pattern will blend and fade in seconds as the crystals react to temperature. Tiny liquid crystals inside the film-like material react to heat by changing colors. As science, it demonstrates the way liquid crystal displays work. And you can cut it into pieces to incorporate into a science project. Or just leave it out for guests to play with when the party turns boring.
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91582 LIQUID CRYSTAL SHEET |
There are temporary tattoos all over the place, but how many of them glow in the dark? Our (6) packs, that's how many. Each pack holds a 5" x 5-1/2" sheet full of tattoos, most 1/2" to 2" across. The spirals and tai chi designs are black and white, the rest are in full color.
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33552 PEACE/LETTERS TATTOOS |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
This is Philip’s new favorite toy, since he blasted a rocket so high over our parking lot that he lost sight of it (the rocket, not the parking lot). The Air Burst™ Rocket system has a 26” tall, air–powered tri–pod launcher made of plastic and rigid foam. A 65” long air hose connects it to any stand–up bike pump. After a few pumps, the air pressure bursts a replaceable booster disc in the launcher and sends a 10” x 3/4” dia rocket 250 to 1000 feet into the air. Wow! The system includes the launcher, (2) rockets, and (60) boosters (two different weights). Sending rockets out of sight, even if they usually come straight back down, is an ingenuous ploy for selling extra rockets. Our each is a pack of (2). And having extra rockets is an ingenuous ploy for selling extra booster discs. Our each is another bag of (60). No bicycle pump? The 18” black Tech Team pump blew majestically through a “double bozon” booster for us! It creates up to 120 lbs of pressure while most pumps will only generate 80 psi. It fits a Schrader (American) valve. Warning: The Air Burst™ Rocket is for ages 10 and up, with adult supervision. Don’t let us catch you out there without a kid!
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92025 AIR BURST ROCKET SYSTEM | |
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92028 AIR PUMP | |
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92027 EXTRA BOOSTER DISCS | |
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92026 EXTRA ROCKETS |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
This sinister device seems at first glance to be an innocent ping-pong ball. Touch both of the metal strips on the weighted bottom, however, and a circuit closes, making the ball flash red and moan eerie electronic sounds. Can be used to illustrate the idea of an electric circuit to children-show how electricity can flow through a chain of people holding hands, or that a little dampness can improve conductivity, et cetera. Powered with two watch batteries (included) so there is no danger of shock.
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89911 ENERGY BALL |
Well, the next best thing, anyway. 200,000 volts of electrostatic energy created by the Van de Graaf generator you assemble from the kit. Assembly is easy, you need a screwdriver, pliers and scissors - no soldering. A newspaper-like set of instructions includes lots of fun experiments. For grade 6 and up. This is not a toy and should be used under adult supervision. A great tool for teaching about electricity.
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91469 VAN DE GRAFF GEN KIT |
If you're a science teacher, an amateur scientist, or a professional who likes to take his work home with him, you'll lust after this CD-ROM. The updated and expanded disk contains the "legacy of a century," the complete collection of The Amateur Scientist columns from Scientific American magazine, featuring Albert G. Ingalls, C.L. Strong, Jearl Walker, Forrest Mims, Shawn Carlson and others. It includes over 1,000 classic projects in various disciplines for hobbyists, students and science fair contestants, more than 1,000 pages of helpful techniques that never appeared in the magazine, plus Internet links to valuable scientific sites. Minimum requirements: PPC (Mac) or Pentium, 64 MB RAM, Internet Explorer 4.0 or Netscape 4.7 (recommended browser). As a browser-based product, it should also work under Unix and Linux. An incredible resource. An Absolutely-Must-Have!
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92047 AMATEUR SCIENTIST CD |
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