Kick-start your rock collection with the included 36 stones, then use the included crystal powder and mold to grow a geode formation. Collect rocks and conduct experiments, such as a scratch test and float test, to discover their hidden properties. Learn how to make your very own rock tumbler, too. Use the fact-filled book to keep exploring the world around you! Comes with: 36 rocks, display tray, crystal powder, geode mold, plaster, magnifying glass.
By Klutz
Ages 3+ - includes small parts.