A massive mounted set of 100 rocks and minerals found in the United States. This collection emphasizes incredible variety, and covers the full range of sedimentary, igneous, and metamorphic rocks. Featuring rocks and minerals such as Olivine, Chrysoprase, Garnet, Andalusite, Pumice, Scheelite, Alabaster, and Sphalerite, this comprehensive set boasts both familiar and lesser known specimens. A detailed handbook is included, which defines key terms, gives the specific gravity and hardness as well as a brief description for each rock and mineral. An excellent study tool for those with an interest in geology, or a great gift to introduce a loved one to the diversity of US geological formations.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
With this kit, you can conduct 25 experiments to learn how an electric motor converts electricity into motion, and how an electric generator does just the opposite, converting motion into electricity.
Build a model green house and 9 other green energy-related devices with this great kit!
This 1mW, 532nm Super Safe Green Laser Pointer is for education, government or other settings where safety is a concern.
This is a deluxe soldering station that can handle any kind of application!
Check out this high-quality gyroscope!