Through ePals your students can create an email account which is easy and safe to use. Your students can write to another student in the world. There is a section caleed, I think it is very cool! Under the "challenges" tab you can choose the Smithsonian Spark!Lab Invent It Challenge. The students are expected to address a real world problem, research a solution, test possible solutions, and create an invention to improve the real world obstacle. Students really experience something very special.