Reading Level: Gr. 2-3 Interest Level: Gr. K-3
Simple machines are all around children: bicycle wheels, doorstops, the seesaw on the playground. This captivating series from Crabtree opens young readers’ eyes to the essential everyday simple machines in their world. Easy-to-follow text engages kids in learning how levers, wheels and axles, inclined planes, pulleys, wedges, and screws work.