A package of six spare gold leaves for use with an electroscope. The leaves utilized in electroscopes are extremely fragile; this pack will ensure that a ripped leaf can be rapidly replaced. Essential for labs or classrooms.
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
Working model representing the sun, earth, and moon and their relationships.
This mirascope creates a 3D hologram image!
Build 14 assorted solar robots, some of which can travel over water!
Head into the lab for an in-depth investigation of genetics and DNA!
Learn all about the science of light, optics and visual perception with this wonderful kit!