This mineral collection allows a study in detail of the response of these minerals to the range of ultraviolet rays. 15 specimens approximately 1.5" X 1.5" in size are included. Each specimen is labeled, and the kit includes a key to determine what each mineral is. The key also includes interesting facts about fluoresecent phenomena. The minerals are housed in an attractive storage case. Excellent kit for the science classroom, this also makes a good present for the young rock collector in your family!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
Build a robot that's an artist too!
Exciting magnet exploration for ages 8 and up!
This classic desk toy will keep you amused! Large, 7 inch tall version.
Create all kinds of marble run combinations with this 80-piece Marble Run set!
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.