Blue Marble National Geographic Crystal Growing Garden STEM Kit with Geode, Learning Guide for Boys and Girls

Great

高かったです。

My 8 year old really liked this project. Color the trees, pour in the solution. There were already small crystals within an hour, and we woke up to full crystal trees! The crystals feel like foam, and they do crumble when you touch them. Definitely not something that will last, but lots of fun to do.

This is my first crystal growing kit, so I don't have much to compare it to. The instructions seemed to be for a slightly different set, so it was a little hard to know how to apply the growing solution. But it worked mostly as designed. The colors ran and faded more than we thought they would. And the crystals are so soft and delicate they the trees disintegrated over a few days. But it works well as a combined science experiment and art project. My 7-year-old son was excited to create the first tree, but lost interest in doing the other two. Maybe better for a group of three kids to each get one tree, than for one kid to do three themselves.

Easy to understand directions. Grew quickly as suggested but the crystals were like foam and crumbled when touched or moved. Never hardened so nothing we could save, which was a little disappointing.