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!
Great tarantula specimen for the science classroom!
Is it a demonstration of a scientific law or a work of art?
Build 14 assorted solar robots, some of which can travel over water!
Create currents and discover gravity while exploring the theory of Lenz's Law with this kit!
A combination of three of our great discovery toys, all in one package!
This project book and sample kit introduces you to shape-memory alloy technology!