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.
Perform awesome experiments using everyday materials found in any kitchen!
Ever wonder how to survive in the wilderness? These cards can help!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
This microscope is so versatile you can even take it with you on a job site!
This SUPER Erector Construction set is one of the best you'll find anywhere!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.