Through the author's home science program, MOS, the author aims to widen the walls of the school lab. MOS stands for "My Own Science." It is work that students choose and carry out on their own about once a week throughout the year. They are also responsible for keeping track of the time spent working on the activities using log sheets. With a little direction and a few resources, students can be scientists at home in a way that is rewarding to teachers, their students, and their families. MOS is assigned as part of the weekly homework schedule and is a required part of the curriculum. Students take the initiative to develop an assignment and document it to receive credit.