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.
Build over 90 sound-based electronics projects with Snap Circuits' easy to follow instructions!
This mirascope creates a 3D hologram image!
Jumbo-sized 3 foot diameter inflatable globe is great for play and learning.
High-quality green laser pointer projects a green dot up to an incredible 2 miles away.
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.