Save with this pack of 10 buzzers. 1.5 Volts DC 400Hz. Great for Morse code circuits.
Works on 1.5 V DC (any AA, AA, C or D battery will do.)
Create your own circuits or test batteries and solar cells with this buzzer. Connect it to a battery and a key switch to make your own Morse code circuit.
See the solar system in action!
An unconventional ball-tossing, head-catching challenge for 2 players or teams!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Explore the wonders of wind power with this amazing kit!
The Y-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
This classic device is used to demonstrate the conservation of mechanical energy.