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!
Build over 60 projects with this deluxe version of the Snap Rover kit!
Great reference card for chemistry and physics students.
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
The large realistic model has removable organs that can be studied and set back into the correct position.
Use this kit to introduce electromagnetic principles in the classroom setting!
Everything you need to setup your own dancing Oobleck (non-Newtonian fluid) apparatus!