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.
This microscope is so versatile you can even take it with you on a job site!
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
Easily assemble a working alarm motion detector!
See the solar system in action!
Working model representing the sun, earth, and moon and their relationships.
Build over 100 exciting electronic projects with this easy to use kit!