People used to think that Earth was flat, but now we know it isn’t. How did we find out Earth is actually a sphere? How did science help us understand the shape of our planet? Readers will delight in exploring the history and science behind Earth’s spherical shape. They’ll learn how satellite images and modern technology give us an image of the Earth. Readers will also learn all about early scientists and how they gradually came to enlighten others that the Earth wasn’t flat. Clear diagrams and fascinating sidebars help explain this important science topic, as supplemental science experiments give readers the hands-on experience they need to grasp the topic.

People used to think that Earth was flat, but now we know it isn’t. How did we find out Earth is actually a sphere? How did science help us understand the shape of our planet? Readers will delight in exploring the history and science behind Earth’s spherical shape. They’ll learn how satellite images and modern technology give us an image of the Earth. Readers will also learn all about early scientists and how they gradually came to enlighten others that the Earth wasn’t flat. Clear diagrams and fascinating sidebars help explain this important science topic, as supplemental science experiments give readers the hands-on experience they need to grasp the topic.

Explains various changes in humanity's beliefs about the shape of the earth, from the flat earth theories of the ancients to the round earth theories which were proven true by the voyages of Columbus and Magellan. Includes hands-on experiments to help children to recreate the theories.

Explains various changes in humanity's beliefs about the shape of the earth, from the flat earth theories of the ancients to the round earth theories which were proven true by the voyages of Columbus and Magellan.

This book not only answers this compelling question, it explains why people once thought Earth was flat, what Earth is made of, the cause of Earths seasons, and how Earth moves around in space. With gravity, the Sun, and specially designed diagrams as tour guides, students can get comfortable with the unique features of our planet.

It can be hard to imagine a time when it was generally believed that the shape of our earth was a flat plane or disk. This book exposes the bizarre and sometimes hilarious history of science, explores pseudo-scientific theories from the past, and the scientific progress made since then through use of the scientific method. Through the scientific method, anecdotes, historic facts, and the scientific theories themselves, it tells the story of why people of a particular time period believed in such things and the discoveries that led us to learn otherwise.

Hands-on experiments are a great way to engage young scientists. Instead of simply reading facts, they will experience the science that is happening in front of their eyes! The simple experiments in this book, illustrated in color, will unlock the secrets of planet Earth, including why Earth has layers, how continents move, and how we know Earth is round. By the time young readers are finished with the activities in this book, they will be ready to design some of their own to enter in their next science fair.

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