{"product_id":"thames-kosmos-colorful-crystals-grow-kit-overnight-crystal-science","title":"Thames \u0026 Kosmos Colorful Crystals Grow Kit – Overnight Crystal Science","description":"Watch science come to life — literally overnight. The Thames \u0026amp; Kosmos Colorful Crystals Grow Kit lets kids grow their own vibrant crystals from scratch, turning a simple mix into something genuinely magical. Using potassium alum crystal powder and a colorful dye tablet, young scientists can choose to grow one impressive crystal about an inch wide or a whole cluster of smaller ones. Everything you need comes right in the box: crystal powder, a dye tablet, a measuring cup with lid, and a stirring stick. It's hands-on, low-mess, and endlessly satisfying — the kind of activity that sparks real curiosity about how the world works. Perfect for curious kids, rainy afternoons, or anyone who just wants to grow something beautiful. No prior science experience needed, and results appear fast enough to keep attention spans fully on board. A thoughtful gift for budding scientists ages 10 and up.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eOVERNIGHT RESULTS – Crystals begin forming fast, so kids stay engaged and excited from start to finish\u003c\/li\u003e\n\u003cli\u003eEVERYTHING INCLUDED – Kit comes with crystal powder, dye tablet, measuring cup with lid, and stirring stick — no extra supplies needed\u003c\/li\u003e\n\u003cli\u003eTWO WAYS TO GROW – Choose one large crystal (about 1 inch wide) or a colorful cluster of smaller crystals for variety\u003c\/li\u003e\n\u003cli\u003eREAL SCIENCE LEARNING – Kids explore crystal formation and chemistry concepts through hands-on, sensory experimentation\u003c\/li\u003e\n\u003cli\u003eGREAT GIFT PICK – A unique, mess-friendly activity gift for curious kids, birthdays, holidays, or classroom enrichment\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Thames \u0026 Kosmos","offers":[{"title":"Default Title","offer_id":55110401360191,"sku":"TK656320","price":18.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/3785\/4783\/files\/medium_34270ae9-f65f-4081-917d-614f499d6482.jpg?v=1786736773","url":"https:\/\/bargainranger.com\/products\/thames-kosmos-colorful-crystals-grow-kit-overnight-crystal-science","provider":"BargainRanger","version":"1.0","type":"link"}