Find Out More Part of World of Wonder Learn more about trees and how to protect them from the Arbor Day Foundation. Visit the Unitarian Universalist Ministry for Earth or the UUA's Green Sanctuary program to learn how UUs are involved in taking care of the earth. PREVIOUS: Leader Resource 2: Mural Image - White Oak UP: Session 3: Thanks Be for Trees! NEXT: Session 4: Balance in Our Ecosystem Download all of World of Wonder (Word) (PDF) to edit or print.