In this powerful unit, students examine the very nature of energy, its many forms and the changes it can undergo. Students learn basic concepts and information as they go through a series of student notes. The notes are followed by meaningful activities associated with the theme of each lesson. To further captivate student interest, many of these activities have been designed around the "Science Challenge Format", in which small groups of students work cooperatively to solve various problems. Learning, integrated with fun, is the order of the day and your science class may never be as energetic. This Physical Science lesson provides a teacher and student section with a variety of reading passages, activities, crossword, word search and answer key to create a well-rounded lesson plan.