Want a project that is highly engaging? Need a differentiated project based activity to spur your student interest? Host a Child Development Science Fair! This activity has students conduct an experiment on a child development topic they have an interest in learning more about. Examples may include. Which diaper holds the most liquid before leaking? Which brand of baby food tastes the best? The packet includes detailed student directions, a worksheet to help students outline their project and a detailed rubric. Don't forget to invite parents, teachers, and administrators to your science fair along with other students to market your class!