FAST Blue GROWING CRYSTALS - crystal chemistry has never been so fast (grows in 3 - 4 days), fun, and colorful The perfect educational gift for boys and girls GROWING IS EASY Easy-to-follow instructions and the 2 included silicone growing chambers make growing your crystals easier than ever SATISFACTION GUARANTEED The BYNCCEH STEM series provides kids educational toys that are a whole lot of fun If your experience is anything less than extraordinary, let us know so we can make it right for you INSTRUCTIONS: 1. Find an adult to help add 150ml of hot water (about 100C) to the cup, use a stir bar to stir evenly until the powder is completely dissolved. (You can use the measuring cup in the suit to measure the water) 2. Add a whole peritectic powder to the measuring cup and stir evenly until it is completely dissolved. 3. Cool for about 15 minutes. 4. Put the seed crystal into the growth container and pour the solution prepared in the previous step. 5. Put the container in a place where it will not be bumped. 6. Just wait now After about a day, you will see the crystal begin to take shape. But wait another week or so for your crystal to fully grow. When you think it's okay, gently take out the crystal. 7. Use a UV pen to take a photo of the crystal for a few minutes, and then take it to a dark cabinet, you can see the crystal glowing green 8. You can put the container upside down to display the crystal you made. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.