Learn how simple machines make work easier in these colorful nonfiction picture books all about science and engineering! This six-book set ing the Picture Book Science series are designed to introduce young engineers to physical science concepts. Titles include Wedges Make a Point , Screws Keep Things Secure , Levers Lessen the Load , Wheels Make the World Go Round , Pulleys Pull Their Weight, and Inclined Planes Ramp It Up . An introductory poem offers language arts connections while a hands-on activity at the end reinforces concepts in the book. A glossary and photographs offer even more supplemental learning opportunities. All books are leveled for Guided Reading level and Lexile and align with Common Core state standards and Next Generation Science Standards.