Review on Grow 3 Colored Crystals With Toysmith Science Kit - DIY STEM Lab Experiment Specimens For Kids Ages 10+ by Patricia Goliday

This product requires hands-on adult supervision/adult doing everything and kids watching from a safe distance. I wish the set had a separate set of mixing bowls and display cases, but instead you use the display cover as a mixing bowl, then wash and use again. Minor inconvenience normally, but since this is all potentially hazardous material bit more of an inconvenience. The display cover slips off very easily from the base. As the warnings inside state, these crystals are not meant to come into contact with skin, so that is a problem when it comes to curious kids. The crystals are very delicate and break off easily, and they slide around in the case when you move them. An easy fix is to use a hot glue gun to glue the crystal to the bottom of the base, and then glue the cover onto the base. That way kids can hold them, and they won't break too easily.