{"product_id":"kristalle-zuchten","title":"Growing crystals","description":"This large crystal growing kit is full of creativity and possibilities! Children between 10 and 14 years old create their own sparkling world: Shimmering individual crystals form overnight, a glittering crystal cave is made by hand, plaster figures are covered with a magical, crystalline shell and sparkle in the small treasure chest. \u003cbr\u003eThe age-appropriate instructions explain step-by-step how to create these marvels in various experiments and show how to influence the size, colors and shapes of the growing crystals. And what scientific knowledge from the fields of geology, chemistry, and mineralogy is actually behind it? A creative and exciting way to discover MINT sciences with KOSMOS and even start your own experiments! \u003cbr\u003e\u003cbr\u003eContents: 2 x 50g and 3 x 20g potassium aluminum sulfate (alum) (EC No. 233-141-3); 200g plaster (EC No. 231-900-3); colored paper (red, blue, green); tweezers; pipette; spatula; large measuring cup with lid; 3 small measuring cups (red, blue, yellow) with lids; crystal geode mold; crystal figure mold; treasure chest; color illustrated instructions\u003cbr\u003e\u003cbr\u003eAdditional materials required: distilled water\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eManufacturer \/ Responsible person:\u003cbr\u003eFranckh-Kosmos Verlags-GmbH \u0026amp; Co. KG, Pfizerstrasse 5-7, 70184, Stuttgart, Germany, kosmos.de\/servicecenter","brand":"KOSMOS","offers":[{"title":"Default Title","offer_id":53214122869069,"sku":"64560","price":19.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/5980\/8589\/files\/4002051645601_1.jpg?v=1781673225","url":"https:\/\/www.kosmos.de\/en\/products\/kristalle-zuchten","provider":"KOSMOS Verlag","version":"1.0","type":"link"}