Features: 1.crystal growing kit diy science experiment for teenagers boys magics Together with your children, grow magics crystals 2.Parents participate together to increase the relationship between parents and children. 3.The perfect learning method allows children to experience incredibles scientific wonders through practical projects and therefores enjoy exploring scientific wonders in science. 4.A quality study guide will teach your child the interesting science behind this experience. 5.You can get real crystals, and you can add the finished product to the rock collection and show it to your friends or family. 6.It fascinates children, and inspires a love of science in a fun and exciting way. This is a great way to improve your patience, concentration and practical skills. A great gift for children. Intimate reminder: 1.The newly completed Omori Zaki is still very fragile, so take it carefully. 2.After wiping clean, it must be covered with a cork to preserve its crystal color. 3.Do not touchs water or heat, otherwise the shinny will dissolve and disappear without a trace. Description: Rules of operation: 1.Please read the instruction manual carefully before operation 2.When operating, first spread the table top with newspaper or plastic tablecloth to avoid contamination of the table top with solutions dripping during the operation. 3.Avoid touching, moving, and growing wishing shinny. 4.Remembers to open the bottle cap after 24 hours you can39;t pour water at this time, otherwise, the little shinny that grows out may disappear without a trace. 5.When the crystal grows to the surface of the water, it is already at the top, and it will become uglys when it grows. 6.When the temperature changes too much, there will be floating crystals on the water surface, so you need to take it out gently to avoid sinking to the bottom and affecting the growth of crystals. 7.The crystal growth process and the preserved finished product need to be out of the reach of young children. 8.Remembers to wash your hands after operation. Package List: 1 x Crystal Growing Kit