Masteringenvironmentalscience(tm) Student Access Kit for Environmental Science: Toward a Sustainable Future
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Rock Tumbler
The Smithsonian Rocks! The Smithsonian Rock Tumbler is much more than a rock polisher. It can change rough stones into beautiful high-luster gemstones. Kids will make exciting jewelry with the settings included. Contains tumbling machine with heavy-duty motor, rough semiprecious stones such as amethyst, jasper and agate-grit, polish, jewelry settings, glue and instruction manual. Tumbler Refill Kit includes additional stones, grit, polish and jewelry settings. Ages 10+.
Salt Water Fuel Cell Car Kit
Salt Water Makes It Go-Go-Go! Kids will be amazed—and learn firsthand about sustainable, renewable, alternative energy—when they build a car that zips around on just a few drops of ordinary salt water! Environmentally friendly, snap-together Salt Water Fuel Cell Car Kit comes with 3 reusable fuel cells that can be activated over and over for hours of fun. Award Winner. Ages 10+.