
Add a little hands-on project to your lessons with these clear acrylic molds. They're made for molding plaster of Paris, papier-mâché and clay. You pick from a set of (6) topographic map molds of the continental United States with major river systems, measuring 12" x 7-1/2"; a 3-pack of 16" x 7" human skeleton molds; or a single mold with a butterfly, ladybug, spider and fly, all approx 3-1/2" to 5" across. We might even try handmade soap in the butterfly.
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94254 BUTTERFLY-LADYBUG-SPIDER-FLY MOLD | |
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94253 SET OF 3 16” HUMAN SKELETON MOLDS | |
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94252 SET OF 6 US TOPOGRAPHIC MAP MOLDS |
That's what you get with this tesla coil!! Brand new, commercial item, great for classroom demonstrations and experiments. The 50,000 volt capacity generator radiates high frequency energy through space... enough to light fluorescent tubes two feet away. It uses 115 VAC (60 Hz) with an electro-magnetically operated interrupter buzzer, high voltage capacitors, inductive coil transformer, and a monopolar high frequency transformer generator to do the trick. 11" high, with a 6" sq. x 2" high protective housing for the generator. Includes accessories and instruction booklet with 19 experiments. Pretty amazing. But please, this is not a toy and should be used only under adult supervision.
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70301 50,000 VOLT TESLA COIL Note: This item is not eligible for Expedited Shipping or delivery to Alaska, Hawaii, or the Territories. |
If the question is whether to tie a bunch of these giant weather balloons to a lawn chair, the answer is no. (They burst at about 82,000 feet anyway.) Besides, this is a true weather balloon, with plenty of fun, nonfatal uses. The cream-colored latex balloon is approx 40" dia when flaccid, you should pardon the expression, but has an 8-foot dia when inflated. The neck is 9" long x 1" dia. Scientists, meteorologists, inventors, teachers and the imaginative filmmaker are warned to launch the balloon carefully. The material is delicate and not made to survive brushes with pavement, pine branches, or clumsy physics students.
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94055 8 FT DIAMETER LATEX WEATHER BALLOON |
Just like buying salami, except you can't take notes with lunch meat, and these pens cost less than sausage. We bought them in bulk, and we're selling them in bulk. Our each is (2) lbs of extremely assorted, but very nice, ballpoint pens with a gallimaufry of logos and names. For future reference, pens weigh in at approx (50) per pound, give or take.
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39490 2 POUNDS OF PENS |
An easy way to light up the kids' eyes! Teach them to wire a simple circuit with our basic components. The knife switch is mounted on a plastic base. The miniature plastic socket holds a standard flashlight bulb with a 14 mm dia screw base. We pack 6 volt and 3 volt round bulbs, or 1.5 volt bell-shaped bulbs, (5) to a package.(Bulbs are rated slightly higher to prevent them from burning out.) Or hook up the black plastic and metal 2" x 4-1/4" telegraph key with brass contacts and (2) terminal posts with nuts. Our blue-plastic holder for (1) "D" battery has a small tab at each end to hook a lead to, and a 1/8" square mounting hole at each corner. You add the mounting surface and the know-how. Actual bulb voltage listed in parenthesis.
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91160 1.5 VOLT BULBS (2.5 V) | |
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91159 3 VOLT BULBS (3.8V) | |
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91158 6 VOLT BULBS (6.3V) | |
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91769 BATTERY HOLDER | |
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38806 KNIFE SWITCH, DOUBLE POLE DOUBLE THROW | |
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38808 KNIFE SWITCH, DOUBLE POLE SINGLE THROW | |
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38805 KNIFE SWITCH, SINGLE POLE SINGLE THROW | |
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38811 SOCKET | |
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91813 TELEGRAPH KEY |
The coolest way ever to introduce the evolutionary timeline to kids. This timeline is 18 feet of walk-or-crawl-on vinyl, a heavily illustrated panorama of the development of organisms from the Vendian era, 600,000,000 years ago, to the present. It's over a foot wide and suitable for floor or wall mounting, but folds to 12-1/2" x 15" for storage. The reverse side includes (18) different games, activities, Q/A panels and a glossary. Designed for kids ages 4-10, but fun for the teachers and other adults in their lives.
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94059 GIANT TIMELINE |
OK, this is not your Founding Fathers' quill pen, it's a pharmaceutical company's promo ballpoint but the name is in very small letters, and the white pen has a foot-long genuine fluffy white feather on the end. Fits into a brass-ish ball-socket that mounts via an adhesive pad on the surface of your choice. Adds a nice romantic, if not colonial, touch to any desk or counter, plus you get a half-dozen for real cheap.
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40458 QUILISH PEN |
Titled "The Field and Forest Handy Book," this volume has been justifiably in print since 1906. Written by Daniel C. "Uncle Dan" Beard, the founder of the Sons of Daniel Boone and one of the founders of the BSA, it's a compendium of eternally relevant woodland lore, from building cabins, sleds, boats, and bridges to camping in swamps. The only part we skipped was on how to cook a muskrat. (We know a place that delivers.) Loaded with illustrations. In soft cover from David Godine's Nonpareil Books, 428 pages.
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93279 OUTDOOR BOOK |
…when you crank up this 13-1/4" tall, hand-cranked Wimshurst generator. They were the toast of the 19th Century, and remained the hottest thing around, electrostatically speaking, until Bobby Van de Graaf came along. This one works like a top, zapping sparks to a fare-thee-well with very little cranking. It's mighty pretty too, in acrylic, white and silver, and will dress up a dull physics or electronics lab.
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93600 STATIC ELECTRICITY WIMSHURST GENERATOR |
The numbers are 3/8" tall on this yellow 15" tall x 3" wide alcohol thermometer designed for the classroom. Reads -40° to 50°C and -40° to 120°F in red, and is in a plastic housing with (3) keyed mounting slots. Bulb is behind a plastic grid to keep little fingers from making it 98° in the room. How do we know it's for a classroom? Don't be a dunce! It says so right on it!
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40846 CLASSROOM ALCOHOL THERMOMETER |
The kind you hang in the front of the laboratory or on the classroom wall, which is what we suggest you do with this one. Measures 38" x 50" and is laminated to protect it from flying students.
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88168 LG. PERIODIC TABLE |
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