An outdoor scavenger hunt helps learners consider the theme of "What Is Life?" Learners explore what living organisms are, including how organisms meet basic needs of food, shelter and water to survive, how organisms follow the life cycle of birth, growth and death, and how organisms differ from nonliving structures. The scavenger hunt can be conducted in a schoolyard or park. When the hunt is over, learners discuss their findings, particularly what was difficult or easy to find and why. This activity can be found on pages 14-15 of the activity guide.