Overview8 copies of Soaring with Science (Pathfinder). Take off with world champion ski jumper Lindsey Van to discover how Newton's laws of motion play a key role in her jumps. Then find out how the laws of motion are at work every day at the playground. The Explore On Your Own Pioneer and Pathfinder books enable all students to deepen science content knowledge with identical content at two reading levels: Pioneer (grades 2-4) and Pathfinder (grades 4-6). They also provide the opportunity for students to independently apply multiple reading comprehension strategies.