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!
The large realistic model has removable organs that can be studied and set back into the correct position.
Over 300 electronics projects in this kit will keep the young scientist busy!
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!
Exciting magnet exploration for ages 8 and up!
Build your own windmill generator kit by recycling a plastic bottle!
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!