Recommended age: 8 years +

Box dimensions: 8.5 x 8.5 x 9.5 cm.

Discover your first steps as a little chemist with this mini set to develop your own red crystals! A magical experience to see the crystals form within a few days!

This kit can also be used as a necessary supplement for "Crystal Chemistry".

About crystal growth:

• Make sure that during the growth of the crystals, the container with the liquid is not accessible to children under 8 years old.
• Do not place the growing crystals in areas where there is food or drinks, or in bedrooms.

The KIT contains:

• Plastic container with a lid
• 1 gypsum
• 1 color
• 1 package with 120 g of Ammonium Phosphate

Required items:

• 1 stainless steel pot
• 1 stainless steel spoon

Ammonium phosphate is a water-soluble salt that forms beautiful crystals within a few days. To achieve good results, follow these steps:

1. Measure 200 ml of tap water with the kit's cup and pour it into the pot. Add the entire contents of the package.
2. With the help of an adult, heat the saturated ammonium phosphate solution until it boils or until all the salt dissolves. Stir with the stainless steel spoon.
3. After the salt is dissolved, add the color if you desire a colored crystal. Place the gypsum in the center and at the bottom of the plastic cup. Pour the saturated ammonium phosphate solution on top. Close the cup with the lid.
4. Carefully place the cup in a cupboard, in the dark, and do not move it for a few days to obtain a beautiful crystal. Observe the growth of your crystal every 2 days.
5. After 8 days, you can pour the water from the cup into a pot and retrieve the crystal that has formed on the gypsum.

WARNING! The crystals are very brittle! Place them on absorbent paper to dry. Pour the solution from the pot back into the cup and leave it open this time to allow the water to evaporate. Stick a label on the cup "Ammonium Phosphate for crystals". Not consumable!

Keep the crystal in the cup after the water has evaporated.