"Simple text, full color photographs, and illustrations introduce beginning readers to the basic principles of pulleys. Developed by literary experts for students in grades 2 through 5"--Provided by publisher.
"Simple text, full color photographs, and illustrations introduce beginning readers to the basic principles of pulleys. Developed by literary experts for students in grades 2 through 5"--Provided by publisher.
Content Note
What is a pulley? -- How pulleys work -- Kinds of pulleys -- Pulleys and complex machines -- Glossary -- To learn more.