Save with this pack of 10 buzzers. 3 Volts DC 400Hz. Great for Morse code circuits.
Works on 3 V DC (any 2 AA batteries in series 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.
Exciting magnet exploration for ages 8 and up!
Build over 60 projects with this deluxe version of the Snap Rover kit!
This mirascope creates a 3D hologram image!
Learn all about the science of light, optics and visual perception with this wonderful kit!
Command robotic creations with this cool construction kit!
A massive mounted set of 100 rocks and minerals found in the US,
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