NATIONAL GEOGRAPHIC Crystal Growing Kit – 3 Vibrant Colored Crystals to Grow with Light-Up Display Stand, Science Toy for Girls and Boys Ages 8-12, Includes 3 Gems, Cool STEM Gift (Amazon Exclusive)

Good kit with a couple of things to remember
Overall, good kit. Its crystals, you grow them, mission accomplished.Could of things to point out:1) There are three crystal powders. Each one is a different crystal type. They will not look the same by way of color or structure. I know this because I ordered two kits and each of the purples was one type of Crystal. The blues were another type of Crystal and the greens were yet another type of Crystal. This is important because if you’re trying to grow an apples to apples comparison with all three crystals, you will not get it. It’s not a terrifically bad thing as long as you know this going into it.2) There is only one grow cup. We ended up buying silicone cups of an appropriate size from Amazon so we could grow all three at the same time. We were doing a science fair project for growth. If we couldn’t grow them all at the same time, it would have taken us three times as long (a week each). If you’re on a time crunch, that’s not good. It’s not a bad thing since it only shows one cup in the description pictures, but you may not think of the time crunch aspect when you order yours.In conclusion, it does what it says it’s gonna do: give you the sets of crystals.

Grand sons loved it
It was great each child picked a color and had their own experience

Rock solid fun little project with your kiddos
We had success growing all 3 of the crystals and let them grow in our basement where it is pretty dark, no movement and lights on only when we are down there on the weekends with the temp always around 65 – 70 degrees. We followed the included instructions but then used other buyer’s tips (reviewer, Adamo, July 12, 2020) they got directly from the company. The kit comes with 1 growing cup but we used plastic cups (16 oz solo cups) so the crystals could be removed super easy when done growing. We let them grow approx 3 weeks and when the solvent in the cups were almost gone and crystals had grown pretty tall, we gently removed them from the solo cups and let them sit/air dry over night before setting on lighted stand and all worked out great!(reviewer, Adamo, July 12, 2020) they got directly from the company;Here are a few tips to growing great crystals-• With evaporation the solvent creeps up the walls of a glass vessel. Much better containers are made of polypropylene or Teflon, (a plastic yogurt cup or solos cup works well) The solvent doesn’t creep up these types of containers. This also makes it a bit easier to remove crystals from the bottom after they have grown.• stir for 30 seconds in one direction then 30 seconds in the opposite direction• Stability is key so place your crystals somewhere with as little movement or temperature variation as possible.• The crystals do not need light to grow so you could place them inside a cabinet if that is easier. If you chose this method, you may want to leave them an extra couple days. (we leave ours for 30 days resulting in 1 1/2″-2″ points)

Did not grow as big as it said

Mis hijos han disfrutado mucho preparando la mezcla. Lo único malo es el tiempo que tienen que esperar hasta que pueden ver el resultado. La paciencia no es la principal virtud de los niños 😃.Pero cuando destapan el bote y ven el resultado, solo con ver sus caras te das cuenta que la espera les ha valido la pena.

A gift for my 8 year old granddaughter and she loved doing this. The results were very good and decorative and she found it easy to use.