Energy Sources: The Pros and Cons informs readers about the major sources of energy consumed in the world today: fossil fuels, hydroelectric energy, solar and wind energy, and nuclear power. Discussions of the pros and cons of each source are included, allowing readers to form their own opinion about the use of each type of energy. Photographs, charts, and diagrams support the text.
Sometimes the weather can become more than dramatic and develop into something downright dangerous and destructive. Violent Weather details the science behind thunderstorms, tornadoes, and hurricanes and documents their tremendous impact on people and on the land. This book can be used to teach students how to identify cause-and-effect relationships as well as to identify and use closed compoun…
The Constitution is the first and most essential law of the United States. The product of spirited debate by the founders during the Constitutional Convention of 1787, it divides the government into three separate and coequal branches. It describes the powers and responsibilities of each branch: executive, legislative, and judicial. Over the years, Americans have changed the Constitution many t…
In Europe, during the late 1700s, frenzy and fascination swirled around the possibility of traveling by air. The Montgolfier brothers were at the forefront of this movement, creating the first-ever hot-air balloon. The Balloon Brothers details the science and the history of these ingenious brothers along with other inventors and brave souls who made air travel a reality.