11th Day of STEMas

On the 11th Day of STEMas, STEM Spark raffled off a Melissa and Doug Solar System Puzzle! I remember over two years ago we got this for Jack (look at 4 year old Jack here!), and how much fun we've had building this puzzling together-- hopefully whoever wins this puzzle will have fun too!

Use the Rafflecopter below to enter or link here, and please US residents only. Leave us a comment about your favorite puzzle or favorite thing about puzzles, and happy STEM-ing!