This entertaining rap explains that we cannot live for more than a few minutes without air and why it is important to breathe clean air. Children will learn about the role air plays in photosynthesis and how trees help clean the air. Other topics include: how air moves, different names for air, how air has no shape but fills space, its presence in water, and how wind can be harnessed as a clean source of energy. "When I say 'trees', you say, 'clean air.' Will you plant trees to show that you care?"