Explains how plate tectonics causes earthquakes and volcanoes, discussing the movement of the Earth's crust and offering twenty-five science activities to explore geological principles.

"You have heard of Pangea, the single landmass that broke apart some 175 million years ago to give us our current continents. What about its previous iterations, Rodinia or Columbia? These "supercontinents" from Earth's past provide evidence that continents repeatedly join and divorce. Scientists debate exactly what that next supercontinent will look like (and what to name it), but they agree that one is coming. In this book, Ross Mitchell, a geophysicist...

For hundreds of years, people found the fossils of ancient sea creatures at the tops of tall mountains. Scientists puzzled over this problem. A fish couldn't have swum up a mountain. And how could rocks on a mountain move up from the bottom of a sea? Geologists finally found the answers they needed in the 1960s, when they developed the theory of plate tectonics. This theory revolutionized our understanding of the earth. Plate tectonics explains how...

Step up your piecing with a small-scale version of the cherished Dresden Plate. Fall in love with the classic quilt block all over again as you learn the secret to impeccable mini Dresdens in two sizes-4 ½˝ and 9˝ finished. Polish your piecing, pressing, and appliqué with proven techniques and apply those skills to 13 projects from bed-size beauties to wall-hangings and table toppers. A mix of easy and intermediate quilts includes a quilt-as-you-go...

Learn about the forces that change the very shape of the earth suchas erosion and plate tectonics.

Dangerous landslides. Collapsed buildings. Blazing fires. The violent shaking of earthquakes can cause a devastating amount of damage in a short time. Get an up-close look at how these catastrophes form and learn about some of history's worst earthquakes.

It's easy to think of Earth as one big rock beneath our feet. The reality is far more interesting! In this volume, young geologists will learn more about the makeup of our planet and the massive sheets of rock that move over its surface. Illustrations, photos, and intriguing hands-on projects will help them understand how Earth's tectonic plates lead to features such as mountains and ocean trenches, as well as natural disasters such as earthquakes...

The ground beneath our feet feels sturdy and still, but Earth is actually covered in moving plates. These large plates make up the outer layer of Earth's surface and sit on top of another layer made up of molten rock. Borders between two plates are often the site of earthquakes and volcanoes. The plates can slide against each other, crash into each other, move apart, and even create mountains. There is so much to learn about what's going on beneath...

"Discover what earthquakes are and how they are caused. Find out how scientists measure earthquakes, and what makes some earthquakes so much more destructive than others. Read about some of the most serious earthquake disasters in history, and how people can be better prepared in the future"--