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.
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Use this awesome prism to teach about optics and light in the classroom setting!
Easily assemble a working alarm motion detector!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!