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If your students get loopy over roller coasters, they’ll be psyched for Roller Coaster Physics. It uncovers not only how friction, potential energy, gravity, and acceleration combine to create thrill rides but also how the g-forces of roller coasters affect the human body to make us love – or dread – them.

Includes a teacher’s guide with discussion questions, a lesson plan, vocabulary, and addressed national science standards.

$69.95 $39.95

Roller coasters might seem dangerous, but it is truly an illusion. Engineers use the latest technology to design rides that are both thrilling and safe.

$59.95 $39.95

This precut vertical axis wind turbine is easy to assemble so you can focus on demonstrating how this unusual-looking turbine works to convert wind into energy.

Features an injection-molded base, precut plastic wind blades, and rare earth magnets. The built-in LED shows you that the wind turbine is working – or connect it to a multimeter, sold separately. Built model measures 204 mm x 145 mm x 145 mm.

$52.00 $39.00

With Servo Commander, any animatronic device built with standard hobby servos can be programmed to move without a computer!

Simply connect batteries and up to five servos to the circuit board, rotate the controls in the direction you wish the servos to move, and press a button to save the sequence of movements. More sequences that involve all or some of the servos, up to a total of 51, can be saved. After programming is finished, switch on the circuit board and watch the animatron execute its moves!

Servo Commander is fully assembled and includes a servo motor, 9 V battery, rechargeable four-cell battery pack, circuit board, and instructions. Additional servos sold separately.

$149.00 $69.00

Designed as a prequel to Sketching: Drawing Techniques for Product Designers, this resource is intended to support drawing education as part of product design studies. Loaded with cool and contemporary images, Sketching: The Basics covers sketching in design, drawing approach, viewpoint, sketching progress, color and materials, product context, and more.

And this book has such amazing detail and instruction that our own graphic artists wanted to keep it!

$47.00 $35.25

This ultra-fast rubber band racer can travel five meters in one second! Engineered to generate a tremendous amount of torque by the stretching of a rubber band, the Sling Shot optimizes the transfer of potential energy into kinetic energy. The design of its ultra-sticky foam wheels provides maximum traction and keeps the Sling Shot from spinning out at the starting line. The result is a clear winner for all speed contests.

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From $13.75

See a space shuttle take off, fly, and land – all on your school grounds!

With its striking shuttle appearance and a taillike rocket exhaust, this kite will cause a clamor among your students. Features a fiberglass frame, ripstop nylon sail, and a 5' spinning flame windsock tail. Requires a wind speed of 5-20 mph for flight.

$32.00 $16.95

A/C adapter for the SpeedTrac X Personal Radar speed detector.

$20.00 $15.00

High-quality sprocket chain for robotic applications. Fits Servo Sprockets and Plain Bore Sprockets. Use in conjunction with sprockets to provide power where you need it!

Chain can be taken apart at any joint and reassembled to any length! One foot of chain per package.

$9.50 $5.25

Sta-Clear Cleaning Tissues are formulated and treated for cleaning safety glasses and goggles and prevent fogging. No special solution is required – just water.

$19.95 $14.96

Water freezes, melts, and evaporates. It’s no surprise, but do students understand what makes the water move from one state to another? The states of matter are key to everything from water cycles to hot-air balloons. Students learn the subject by exploring the software’s library, laboratory, theater, simulations, and studio. Includes a teacher’s guide.

$69.95 $39.95

Get programmable control while keeping your robot looking clean and tidy.

The TETRIX® Autonomous Mounting Deck features precut holes to make it easy to mount an Arduino or Parallax Basic Stamp programmable controller to a TETRIX robot, as well as the TETRIX DC Motor Speed Controller.

The deck is sized to fit the TETRIX hole pattern spacing so it can be used on a variety of robot designs. Made from 1/8" black acrylic and measures 6.25" x 3.75". Includes screws, nuts, kep nuts, and acrylic spacers for mounting components.

$15.95 $10.95

Featuring fully proportional forward and reverse speed control, this servo enables precise movements of robot designs. Unlike other servos that have a limited range of motion, this servo rotates continuously in either direction – as needed for wheels. This high-quality servo is designed with a wide neutral dead band to eliminate the “creep” that occurs in many other continuous rotation servos. Dual ball bearings on the output shaft ensure long-lasting performance. Note: This servo does not have position feedback.


When you need double the power, this bracket does the trick. Use it to attach two motors side by side. Made of heavy-duty aluminum.

$7.95 $4.95

Used with the Frame Mounting Bracket, the Pivot Bracket creates strong, durable pivot joints while minimizing side load on the servo shaft. Compatible only with TETRIX® Quarter-Scale Servo Frame Mounting Bracket (39383); includes a 3 mm Bearing Pack.

$8.95 $4.95

Each bracket features a pivot bearing. Made of heavy-duty aluminum. Compatible only with TETRIX® Single Standard-Scale Servo Motor Brackets (39060).

$10.95 $4.95