Mighty Machines: Bulldozers

Bulldozers help push dirt. Bulldozers come in different sizes. The world's largest bulldozer weighs as much as 15 buses. Learn more about these machines in Bulldozers, an AV2 media enhanced book.
Bulldozers is part of the Let's Read collection of media enhanced books designed for children ages 5 to 7. These books were created to inspire beginning readers to become independent readers. Your AV2 book gives you access to enriched and enhanced content that includes audio, video, weblinks, quizzes, activities, and a slide show.