Magic Science by Scientific Explorer – Kids love it!  Make sure you have adult supervision, safety goggles and/or gloves.  The product contains some chemicals that could be harmful.


Snap Circuits – This is a wonderful toy for your budding electrical engineer!  It has easy to follow instructions and fun experiments!  My preschooler can even help place the circuits with direction.
Smarty Parts – My four year old son really enjoys this toy and can get pretty creative in his play.  However, the connector pieces don’t last long and can be hard to pull out of place.  Some of the suggested models don’t exactly work either as the blocks aren’t thick enough to allow connectors on both sides.