North Pole, South Pole: The Epic Quest to Solve the Great Mystery of Earth's Magnetism by Gillian Turner David Macaulay A book that is both

A book that is both restful and

written by Margot Theis Raven

close-up photos and compelling writing make this easily accessible to young readers

This comprehensive guide offers step by step instruction for teachers

North Pole, South Pole: The Epic Quest to Solve the Great Mystery of Earth's Magnetism by Gillian Turner David Macaulay A book that is bothWhy do compass needles point north but not quite north? What guides the migration of birds, whales, and fish across the world's oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, the world's great scientists have grappled with these questions, all rooted in the same phenomenon Earth's magnetism. Over 2,000 years after the invention of the compass, Einstein called the source of Earth's