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.
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
Build over 60 projects with this deluxe version of the Snap Rover kit!
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
Experience this sphere powered by the sun!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
This microscope is so versatile you can even take it with you on a job site!
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