Fossils provide a valuable look into our ancient past. By examining fossils and the rocks they are found in, scientists understand the effects that events such as mass extinctions, meteroite impacts, and climate change have on Earth's history. This fascinating book explains how plants and animals become fossils, how they are extracted from excavation sites, and how paleontologists and geologists piece together Earth's history by studying these ancient clues.

Should the Internet be a place for free thought and free sharing? Or should the government and Internet service companies be able to censor and block content? This up-to-date book will help equip readers with tangible tools to help understand the issues involved in net neutrality and encourage them to stay informed of further developments. Teacher's guide available.

From ancient Pueblo homes to the Australian mining town where half the population lives underground, this appealing book uses cutaway illustrations to introduce readers to homes that were built below ground. Labeled diagrams of underground homes and fun facts will make this enjoyable read highly useful.

It all starts with erosion for sedimentary rock. Worn down bits of rock become pressed together under pressure into strata, or layers. The formation of rock such as sandstone, shale, limestone, and dolomite is explained in this fact-filled book. Readers will also learn that this type of rock is useful in determining the Earth's geological history because its layers often hold fossils and other geological clues.

Earth's surface is constantly being changed by heat, water, ice, salt, plants, and animals. Sometimes the changes are destructive to human activities such as farming and the building of structures. This interesting title shows the different ways people try to stop or reduce this change in the land. Examples feature such structures as dikes to hold back water and windbreaks, and adding shrubs, grass, and trees to an area of land to prevent erosion. Teacher's guide available.

What is the Rock Cycle describes the natural transformation of one type of rock into others. Beginning with igneous rocks made in volcanic eruptions, rock is weathered and eroded gradually to form a sediment. This sediment is then deposited and pressed into layers making sedimentary rocks. These in turn are transformed by heat and pressure into metamorphic rocks. Heat makes these melt into magma which, together with molten rock from the core of the Earth, make new igneous rocks.

Why do people migrate to and settle in the places they do? Fascinating examples in history help explain how the earliest human settlements were situated close to fertile ground and rivers for farming and raising livestock. Other determining factors have included areas that offered defensive advantages, resources such as metals, salt, and fossil fuels, and locations on trading routes. In modern times proximity to commercial centers and transportation links, such as railways, canals, and airports, have become more important. Examples featured include settling the Nile in ancient Egypt; the shaping of Central America by trade and colonization; the Industrial Revolution in Britain; the opening up of the American West; the Gold Rush; and the colonization of Australia. The concepts of urbanization - the settlement and growth of cities - and suburbanization, the return to the countryside and the growth of commuter towns, are both examined.

A major societal issue in the world today, opioid addiction is causing a devastating number of deaths and is costing countries millions of dollars. This timely book includes information on the causes and effects of opioid addiction and the methods being used to combat this deadly epidemic. Teacher's guide available.

Ethics in the media is a topic of some heated discussion right now in South Africa and is clearly a challenge to practitioners as well as students of communication and media studies. Communication and media ethics in South Africa introduces and grapples with notions of ethical principles and practices, and how these may be applied in a diverse and challenging local context that is still undergoing political and policy transformation. This timely book has been written by reputable South African academics in the field.

This exciting book explains how the shape of Earth can change with the sudden movement of Earth's crust or when molten rock explodes out of an opening in Earth's surface. Young readers will be fascinated to discover how volcanoes form - destroying the landscape and creating new landforms at the same time. They will also learn about tectonic plates and fault lines, the damage earthquakes can cause, and how to stay safe when an earthquake happens. Teacher's guide available.

This informative book explains how Earth is covered by landforms and bodies of water, all of which change shape over time. Interesting images feature landforms such as mountains, valleys, and sand dunes, as well as waterways such as oceans, rivers, and ponds. Children will learn how they develop and why they change.Teacher's guide available.

This fascinating book explains how the shape of Earth is changed by weathering and erosion - the breaking down of rocks and minerals which are then carried from one place to another by water, ice, wind, and gravity. It is this movement that carves out valleys, causes trees to topple over, and creates or destroys good farmland. Examples of changes to landforms help show young readers the effects of weathering and erosion, which can happen quickly or sometimes take centuries! Teacher's guide available.

Sharing, taking turns and treating everyone we meet with respect are ways we can show fairness to others. But how do we know what's fair? And how do we follow through on what we know is right? The six people in this graphic nonfiction book have all shown their commitment to a world of equality and fairness. Let's see what we can learn from them. As you read, you'll also ask yourself how you would have responded in some of the situations they faced.

To be a spy in today's high-tech world, you've got to specialize - whether you're keeping tabs on foreign governments, fighting terrorist organizations, or stopping cyber espionage. This fascinating book describes spying throughout history, the gadgetry of a spy, and what kind of training is required to join intelligence-gathering agencies around the world.

Since the discovery of Lucy, one of the most famous human skeletons ever discovered, paleontologists and people alike have been fascinated with human fossils. In this book, students will follow the timeline of key discoveries in human fossils, and learn how scientists continue to link together the evolution of humanity using evidence from the past.

For centuries, exploration of the Arctic has been pursued for its potential value as a commercial sea route. Many expeditions tried in vain to navigate its frozen waterways. This timely book tells the stories of famous expeditions to find a Northwest Passage from the Atlantic to the Pacific, to map the frozen wasteland, and to be the first to reach the North Pole.

In this colorful book, students will learn about the roles and relationships of the heroes and gods in ancient Greek myths and legends. Several ancient Greek myths are retold, describing how these stories helped ancient people interpret their world. Myths include: - Apollo and the oracle at Delphi - Demeter and Persephone - Pandora's box, and more!

Entrepreneurs are a vital component of a successful economy. They can create jobs and help keep money in their local communities. What is Entrepreneurship? explains the risks and rewards involved for entrepreneurs as they work to bring innovative ideas to life and make their mark on the business world. This title outlines key steps involved in starting, managing, and growing a small business, including research and idea development, writing a business plan, managing financial input and output, and planning for growth. Biographical snapshots highlight the innovative thinking, perseverance, problem-solving skills, and other traits essential to the entrepreneurial spirit.

The legendary island of Atlantis was said to have incredible buildings, waterways, and art - far advanced for its time. Then, in a day and night, it was destroyed by earthquakes and floods, disappearing forever into the earth. Was this fascinating place myth or reality? This intriguiging book follows the clues in the writings of the ancient Greek philosopher Plato to discover the truth.