First of all, we have the Crystal Growing set which is a whole lot of fun. This set has children putting powder into a tub and then when they add water, they can watch in amazement as crystals start to grow! Children are going to get a huge kick out of this and what is really great is that the set teaches children the science behind how and why this happens when water is added to the powder. Once the crystal has grown, it is going to look awesome on display in their room. The other part of this science kit is the Fluorescent Snow & Stars Glow in the Dark set. With this, they have a series of stickers of snow and stars. By adding the magic powder and just a cup of water, science will turn these basic stickers into glow in the dark stickers that will look so cool when they are put all over their bedroom. Just like the Crystal Growing set, this one also has simple to follow instructions that not only tell children what to do, but teaches them the science behind it too. Suitable for ages 6 and up.