so there are these devises that you can get for your child and you get 2 of these devises and then your child gives one to her friend and one for her or him and they can write to one another
I am the path that one object, such as a planet, takes as it moves around another object. What am I? I am one complete trip around the sun. For earth, one of me is a year. Who am I? I am the force of...