STEM Education Set - Crystal Geode, 8 years+, Kosmos
type: Product
sku: 395204
brand: Thames&Kosmos
category: Copii & Jucării
description: STEM educational set - Crystal geode, 8 years+, Kosmos [4002051616182] Discover the new STEM Educational Set - Crystal Geode and create with your child the most brilliant crystals, in your own plaster form. STEM Educational Set - Crystal Geode contains: 2 sachets of aluminum and potassium sulphate, 1 sachet of dye, 1 bag of gypsum powder (calcium sulfate), mold, graduated glass, wooden spatula and instructions. Have you ever wondered how those gorgeous geodes are formed in nature? Well, stop thinking and open the illustrated instructions, follow them step by step and create your own version of it, just with the help of this STEM Educational Set - Crystal Geode. Once you're done, you can display the result of your experiment anywhere in the house. It can be considered a special decorative piece, which your guests will admire every time. Game Mode 1. **Crystal preparation:** In a jar, mix one sachet of potassium aluminum sulphate with 90ml of water. Place the jar in a pot of hot water and stir until the solution is clear. Let it cool, and when the crystals have formed, remove them and store them in a container. 2. **Making the Plaster Mold:** Mix half of the calcium sulfate powder with 60ml of water until you get a smooth consistency. Pour the composition into the mold and, while the plaster is still wet, sprinkle the previously formed crystals. Allow the mold to dry for a day. 3. **Staining the crystals:** Prepare another solution of potassium aluminum sulfate, but this time add the dye included in the kit. After cooling, pour the solution into the plaster mold and let it dry for two days. After the crystals have formed, remove the excess solution and allow the geode to dry completely for another day before removing it from the mold. 4. **Displaying the result:** After the geode is completely dry, you can display it anywhere in the house as a unique decorative piece. BENEFITS STEM Development: The set encourages scientific curiosity and the development of practical s…
offers: Offer
  price: 8.8
  price currency: RON
  availability: https://schema.org/InStock
  condition: https://schema.org/NewCondition
  seller: liki24.co.uk
  price valid until: 2026-08-31
  valid from: 2026-08-15T04:45:33.198Z