The Lens Set is an excellent set of 6 unmounted glass lenses with round edges. Each set includes one each of double convex, plano-convex, concavoconvex, double concave, plano-concave, and convexo-concave lens.
These are 50mm diameter.
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Build a robot that's an artist too!
Learn Chemistry While Creating Sweet Treats
An ancient toy featuring optical illusion and hands-on fun that never grows old!
Learn about detective science through this fun fingerprinting kit!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
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.