Sound waves will not travel through a vacuum. Prove it with this demonstration of a ringing bell inside a sealed glass jar. As air is gradually vacuumed out of the jar, the bell will become faint, and will eventually become silent. Great demonstration model for the classroom setting.
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Use this kit to conduct experiments with models to learn about forces and simple machines!
Get one of the craziest and coolest kaleidoscopes around!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
A perpetual motion model of the galaxy, makes a good desk toy.
Learn how solar cells transform light into electrical energy with this great kit!