Learn the basic principle of operation behind an electric bell. Great for science fair projects.
Operates on 3- to 6-V DC battery or 6- to 10-V AC transformer.
The coils and terminals are enclosed under a snap-on metal cover.
Bell is removable for use as a buzzer. Mountable.
Build your own windmill generator kit by recycling a plastic bottle!
With 23 hands-on experiments, you can investigate specific weather phenomena as well as the climate system in general.
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!
Check out this high-quality gyroscope!
Experiment with engines powered by air pressure and water, and build models to race your friends!
Discover how solar cells make electricity with this awesome kit!