Discusses how rocks change over time, the effects of weathering and erosion on rocks, and how the shifting of tectonic plates affected Earth's structure.
Analiza c?mo las rocas cambian con el tiempo, los efectos de la intemperie y la erosi?n en las rocas, y c?mo el cambio de las placas tect?nicas afect? la estructura de la Tierra.
"From sidewalk chalk to the Grand Canyon, sedimentary rocks are everywhere. But what do you know about this common rock? Dig into the layers of sediment built up over millions of years to make these rocks. Follow along with the different ways these rocks form and change, find out what they look like up close, and explore some of the most famous and fascinating sedimentary rocks"--Provided by publisher.
An introduction to sediment, covering what it is, where it fits into the rock cycle, where it can be found, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
"The history of Earth can be explored through the sediments that cover its lands and the layers they've formed over time. How did they get there in the first place? The answer is erosion... Readers will learn about the processes of erosion and weathering, sedimentary rocks, and the rock cycle."--Provided by publisher.
Earth's lithosphere is the rigid, outer part of the planet, including the crust and upper mantle. Readers of this informative guide will learn about the types of rock, including igneous, metamorphic, and sedimentary, that make up the lithosphere-and how they come together to form the rock cycle. They'll also see how the movement of tectonic plates inside Earth creates landforms and natural events. Helping to fulfill standards in the earth science curriculum, this book features vibrant photographs and in-depth sidebars.
"Engaging images accompany information about sedimentary rocks. The combination of high-interest subject matter and narrative text is intended for students in grades 3 through 8"--.
