Standard glass 60mm petri dish. Great for chemistry experiments.
Petri dish size: 60mm (2 3/8 inch) in diameter x 15mm (5/8 inch) thick
Create all kinds of marble run combinations with this 80-piece Marble Run set!
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
Explore the wonders of wind power with this amazing kit!
Create beautiful art with this amazing sun paper!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!