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Mini-Monster Prism

Optical grade unsilvered glass prism from Uncle's WWII tank periscopes. This one is 2-1/8" on the hypotenuse, 5-3/4" long, and 1-1/2" on each leg. They may come with small non-interfering chips or surface scratches. Great for classroom experiments or for art projects. These are a true surplus find and they will not last forever so get yours today!

3538 MINI-MONSTER PRISM
$10.75 EACH
 

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.

88690 MULTI SOIL TEST KIT
$14.95 EACH

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Ferrite Cores

Great for chokes, toroids, RFI suppression and much more. Our ferrite cores are attracted to magnets, but are not magnetic themselves. Edges are slightly beveled. 29122 is 1" O.D. x 5/8" I.D. x 1/4" thick. 29180 is 1/2" O.D. x 1/4" I.D x 3/16"thick.

29122 FERRITE CORE, 1"
$2.25 PKG(3)
29180 FERRITE CORE, 1/2"
$2.00 PKG(8)

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Love Meter

AKA hand boiler. An exotic bit of hand blown glass with a bulb at top and bottom connected by some zippy tubing that spirals, loops, and/or jogs. In the closed system is some colored liquid (methyl chloride) that is very light. Hold the lower bulb in you hand and as the air in the system is warmed it pushes the fluid through the loops to the upper chamber. When all the liquid is pushed out of the lower bulb, expanding air will bubble through the tubing making it appear that the liquid is boiling. WARNING! The glass is fragile and the liquid is nasty. If you drop the thing on e.g. the kitchen tile, it will eat the finish off the tile and the stain in the liquid will permanently stain the floor. So don't let kids handle this item unsupervised. About 7" tall, it is a favorite in our stores.

6199 LOVE METER
$4.50 EACH

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Anatomical Charts

A collection of 11" x 14" top quality medical charts. They cover topics such as organs: "Eye" or "Skin", systems: "Digestive" or "Female Reproductive" and disease or conditions such as: "Cancer" and "Obesity". They are on heavy coated paper suitable for putting up in, say, a classroom where they would be excellent teaching aids. Most are overruns that are imprinted with the name of a drug at the bottom and were distributed as part of a promotion. A few have misspelling misprints. Because of varying quantities and a horrendous sorting problem, we cannot give you the luxury of picking your favorites from a long list. We also have (2) large (20" x 26") wall charts, One on hypertension and one on the male reproductive system.

20664 ANAT CHARTS, PKG(12)
$10.00 PKG(12)
20655 ANAT CHARTS, PKG(2)
$2.50 PKG(2)
23059 HYPERTEN WALL CHART
$3.50 EACH
23062 MALE REPRO WALL CHART
$3.50 EACH

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A Spoonful Of Sugar

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

An educational Science Kit that kids will love! Fun projects. Great box. Instructive instructions! Fingerprint Files includes the history of fingerprints, and all you'll need to take them, using actual police and FBI methods, and dust surfaces for matching prints. Very nice as a small gift, or for home schooling. Ages 8 and up.

91776 FINGERPRINT FILES
$6.95 EACH

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Flying Bird

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

From France comes this fun mechanical plastic bird that really flies by flapping its wings. It is about 8" long and has a wingspan of 16" tip to tip. Snap the wings in place, wind up the rubberband drive and toss it gently into the air on its maiden flight. It flies up to fifty yards with a satisfying fluttering sound. Comes with a spare rubberband drive mechanism.

88566 FLYING BIRD TOY
$12.50 EACH

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Safety Flasher

"Laser" safety lights each with super bright LEDs run by (2) "AA" batteries that you supply. It's square and has a flashing or steady LED lamp visible up to 2500 feet (distance may be exaggerated). A 2" x 2-1/2" red plastic reflecting lens covers (3) lamps. Hook it on your belt or pack with the belt clip, use the included elastic strap for arm or leg mounting, or the included aluminum flange to attach it to your bike.. It's great for general use as a warning device or as an emergency signal for roadside breakdowns.

89594 LASER SAFETY LIGHT
$2.95 EACH

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Break Your Own Geodes

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

Pop one of these roughly 1-1/4" dia stones into the toe of a sock, smash it with a hammer, and be the first person ever to see your real-as-Nature-makes-it geode!! Ninety percent of them have the familiar beautiful white crystals inside. Formed by volcanic action, they are found all over the world, but ours are from Mexico. There is no way to tell from the outside if they have crystal centers, but we will send you two just to raise your odds, and we haven't had a dud yet in our stores!! Much much more fun and satisfaction than buying one already cracked.

88823 GEODES
$2.95 PKG(2)

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Sea Monkeys, Do Monkeys

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

Yes, we have a Sea Monkey® aquarium kit. The (9) piece aquarium kit includes eggs, food, water purifier, plus an official plastic spoon, 32-page handbook, life insurance policy, growth guarantee, and the plastic aquarium with built-in magnifiers for viewing your little friends, and a vented cover.

90288 SEA MONKEY AQUAR. KIT
$12.95 EACH

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Pow! Pow! Pow!

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

It's 1953 all over again! Now you can buy your favorite childhood toy for your grandkids! We have the original Burp Gun that rapid-fires small ping-pong-type balls the length of our office as fast as we can pump the barrel (no batteries needed). All right, we remember the grip of the original as plain old brown plastic, and this one is bright red - but kids are used to a lot more stimulation these days! The Burp Gun, which comes with 15 balls, is 30" long when fully extended. The Burp Pistol, which comes with 7 balls, is 12" at its smallest and extends to 17". Great fun - but maybe you'd better buy a couple of bags of extra balls (10 per bag). Big sisters still stomp on them.

92020 BURP GUN
$17.95 EACH
92021 BURP PISTOL
$14.95 EACH
92022 EXTRA BALLS
$3.95 EACH

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