You can use this rubber stopper to contain liquid in test tubes and flasks. Fits tightly to prevent chemical leaks. Highly recommended for use in the science classroom or when displaying a science project!
Command robotic creations with this cool construction kit!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Build over 60 projects with this deluxe version of the Snap Rover kit!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
This SUPER Erector Construction set is one of the best you'll find anywhere!
Get this great introductory chemistry kit for your favorite young scientist!