North Pole, South Pole: The Epic Quest to Solve the Great Mystery of Earth's Magnetism by Gillian Turner snow hares but a flexible set of

but a flexible set of ideas that keep education in focus

One of CCBC's Best Books for Kids and Teens

and measures

Ball concludes that 'we are at the beginning of a profound rethinking of how life works

Contaldo brings joy and dazzlement

North Pole, South Pole: The Epic Quest to Solve the Great Mystery of Earth's Magnetism by Gillian Turner snow hares but a flexible set ofWhy 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