Did you know that Earth is the only known planet to have oceans of water? It is sometimes called the Blue Planet. Find out more in Earth, a Planets book. Thisis an AV2 media enhanced book. A unique book code printed on page 2 unlocks multimedia content. This book comes alive with embedded weblinks, audio andvideo clips, activities, and other features, such as a slide show, matching word activity, and quiz.

Did you know that Earth is the only known planet to have oceans of water? It is sometimes called the Blue Planet. Find out more in Earth, a Planets book. Thisis an AV2 media enhanced book. A unique book code printed on page 2 unlocks multimedia content. This book comes alive with embedded weblinks, audio andvideo clips, activities, and other features, such as a slide show, matching word activity, and quiz.