This cadmium sulfide (CdS) light dependent photo resistor has resistance inversly proportional to the amount of light falling on it. In complete darknes it has a 0.2 M ohm resistance and in 10 Lux light it has approximately 10 K ohm resistance.
Great for light sensor electronic circuits, for Arduino modules, robots, and more.
This project book and sample kit introduces you to shape-memory alloy technology!
Create currents and discover gravity while exploring the theory of Lenz's Law with this kit!
Comprehensive collection of 30 fossils.
Learn Chemistry While Creating Sweet Treats
Get this great introductory chemistry kit for your favorite young scientist!
Discover how solar cells make electricity with this awesome kit!