Showing Items 1 - 7 of 27 Count Connected Cubes   WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs. Colorful combinations of connective creativity and counting games are awaiting kids in this bag of (50) connectable cubes in (5) colors: red, yellow, purple, green and orange. Each 3/4" cube has (5) holes and (1) nib for many possible connections, and each also has a bore through it so they can be strung like beads. Teach counting, make letters, picture frames and shapes. Good for hand-eye coordination, too, and so inexpensive you can by a bunch for large building or counting projects. 38968 COUNTING CUBES $1.25/EACH Simple Circuit An easy way to light up your students’ eyes! Teach them to wire a simple circuit with our basic components. The knife switch is mounted on a 1–1/2” x 3” black–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 2.5 volt bell-shaped bulbs, (5) to a package. As an alternative, hook up the black–plastic and metal 2” x 4–1/2” 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. 38805 KNIFE SWITCH $2.25/EACH 38811 SOCKET $1.50/EACH 91158 6 VOLT BULBS $2.25/PKG(5) 91159 3 VOLT BULBS $1.75/PKG(5) 91160 1.5 VOLT BULBS $1.75/PKG(5) 91769 BATTERY HOLDER $1.25/EACH 91813 TELEGRAPH KEY $5.50/EACH 50,000 Volts This brand–new item is great for classroom demonstrations and experiments. The 50,000 volt capacity generator radiates high frequency energy through space –– that’s 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. 11" high, with a 6" sq. x 2" high clear–plastic protective housing for the generator. Includes accessories and instruction booklet with 21 experiments. An amazing piece of equipment, but not a toy. It should be used only with adult supervision. 70301 TESLA COIL $229.00/EACH Lightning! Or the next best thing, anyway. Create 200,000 volts of electrostatic energy with the Van de Graff generator you assemble from this kit. Easy to assemble. You need a screwdriver, pliers and scissors –– no soldering is required. A newspaper–like set of instructions includes lots of fun experiments. For grade 6 and up. This is a great tool for teaching about electricity, but it is not a toy and should be used only with adult supervision. Size (overall) 18” tall Ball 6” dia 91469 VAN DE GRAFF GEN KIT $129.95/EACH Nobel Starter Set   WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs. Get your pre-Nobel prize-winning chemist started with this wooden organic molecule structure set. It includes a variety of balls in a variety of solid colors to represent different atomic elements such as carbon, nitrogen, hydrogen and the like. This set also includes one-inch and two-inch wooden connectors and two-inch helical springs. Full instructions included for building 3-D models. 89274 KIT MOLECULAR, WOODEN $29.95/EACH The Sparks Will Fly… …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. 93600 WIMSHURST GENERATOR $93.95/EACH Eat Smart In which state would you find the Colorado River? Sorry, you're out of time! If you set the table with your educational placemats, you'd know the answer. Each laminated 12" x 17-3/8" placemat is full color on the front, and black & white on the back. Write on the back with markers, then wipe off and start again. You can choose the U.S. Map, Stars & Constellations, or the Periodic Table of Elements - but our favorite is the one that shows the stars, includes helpful information about the night sky, and lets you draw your own constellations on the back! 92513 US MAP PLACEMAT $2.95/EACH 92514 STARS PLACEMAT $2.95/EACH 92515 ELEMENTS PLACEMAT $2.95/EACH 93379 WEATHER PLACEMAT $2.95/EACH 93534 FLAG PLACEMAT $2.95/EACH
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