Klutz Maker Lab: Rocks, Gems & Geodes

描述

2977737 The colourful rocks you explore with this kit will open up the world of earth science and geology! Kick-start your very own rock collection with the 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. You'll even learn how to make your very own rock tumbler. Use the fact-filled book to keep exploring the world around you!