This simple and fun project has been around for decades and is still as amazing and entertaining as ever. Simply place colored stones into a solution and watch them grow into beautiful, colorful crystal formations within just ten minutes. Set includes rocks in multiple bright colors, growing solution, display tank and plastic shark figurine.

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Categories Learning & Education NSI Toys & Games

This brightly-colored wooden train is over 17″ long and includes 15 interchangeable pieces to get any child’s imagination rolling. The solidly-built engine and multicolored freight cars have sturdy pegs for linking the cars and stacking the “cargo” blocks. Get on board for a high-quality, value-packed adventure.

Read More 18-piece Wooden Stacking Train

Categories Early Development Toys Learning & Education NSI Push & Pull Toys Toys & Games

This is the real thing! Heavy duty rock tumbler does much more than
ordinary rock polishers- it actually changes rough stones into beautiful
high-luster semi-precious gemstones. You can even make jewelry and key 
chains with the settings included in this set. U.L. Listed. Set includes
tumbling machine with heavy duty motor, rough semi-precious stones (incl
uding amethyst, jasper, agate and others), grit, polish, jewelry settings,
glue and instruction manual. Ages 10 and up.

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Categories Learning & Education NSI Rock Tumblers Science Toys & Games

Keep your rock tumbler rolling. This refill kit contains additional semiprecious stones, grit, polish and jewelry settings. For use with the Smithsonian Rock Tumbler, sold separately.

Read More Smithsonian Rock Tumbler Refill Kit

Categories Learning & Education NSI Rock Tumblers Science Toys & Games