Simple Machines Book Set
Grades: 2 - 4
The most complicated machines often rely on a few simple principles of technology, such as springs, screws, levers, pulleys, and ramps. This series explores these technologies by relating them to common machines in our everyday world—from bedsprings to skateboards to zippers. Numerous sidebars offer readers fast facts and other pertinent information.
Accelerated Reader® titles, RL: 3.9-4.5. Guided reading level: O. Lexile level: 720L.
Set of 5 library bound books, 24 pages each. (S/L price: $112.45)