AL MOMENTO ESAURITO

Klutz Maker Lab: Rocks, Gems & Geodes (Novelty book, 2019)

Altri oggetti che ti potrebbero interessare

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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 included stones. Then use the crystal powder and mold to grow your own geode formation. Conduct experiments such as building a DIY rock tumbler, measuring pH levels, using the Mohs hardness scale, and more.