Camb Disc Educ Rdrs Interm:: Up in the Air: Our Fight Against Gravity

Humans have never been content to just stay on the ground. Learn about the history of flight from the early planes of the Wright Brothers to the thrilling sport of BASE jumping. Use your unique code in the book to access the online reader, complete with videos and interactive exercises. Word count: 2810. Lexile Reading Level: 1030L.