Teach or learn basic weight and mass concepts with this set of 52 plastic weights - excellent for use by both teachers and young students or children at home. Each mass is molded from durable plastic, with central recesses to allow for stacking. Each is also color-coded to correspond to the value of each mass. The weight of each is also indicated on the top. Includes forty 1 gram masses, eight 5 gram masses, and four 10 gram masses. Pick up a set for the home or classroom today!
Perform awesome experiments using everyday materials found in any kitchen!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Explore the wonders of wind power with this amazing kit!
This ultimate chemistry set features 250 mind-boggling experiments!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Watch what your music can create with this amazing Snap Circuits set!
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.