The term "ore" refers to a rock or mineral mass that contains enough of an element or compound to make it economically feasible to mine. This collection of 15 mounted specimens includes some of the more important metal ores that we mine for important industry and trade purposes. Copper ore, for instance, is mined for a variety of industrial purposes. Copper is an excellent conductor of electricity and is thus used for electrical wire.
A detailed handbook is included, which defines key terms, gives the specific gravity and hardness as well as a brief description for each ore. An excellent study tool for those with an interest in geology, or a great gift for collectors who are interested in the practical and industrial applications of rocks and minerals.
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.
An ancient toy featuring optical illusion and hands-on fun that never grows old!
See the solar system in action!
This caffeine molecule mug makes an excellent gift!
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
A combination of three of our great discovery toys, all in one package!
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.