En el libro se explica cómo se puede vivir en casas amigables con el medio ambiente.
Explores electricity from the power plant to your home. Includes how electricity is made, circuits, how we use electricity, and the effects our changing world and weather have on how it works.
Discusses things that rot and break down and things that don't. Investigates how decomposing things may feed insects or animals and help the soil. Discusses recycling.
Explores energy, how we use it, different types and forms of energy, conservation and transformation, renewables vs. non-renewable, and energy conservation.
This book describes the history of whaling in America from its beginnings with Native Americans to its demise in 1924.
This book describes the events leading up to the battle between Santa Anna's Mexican army and Texas volunteers at the Alamo and how that battle helped to shape the future of America.
This book describes the history of Spanish missions in the Old West and how they helped to shape the development of the region.
This book chronicles the acquisition and settlement of the various territories that have not become states but are governed by the United States.
The book chronicles the Spanish exploration and early colonization of America
This book chronicles immigration to the United States, discussing how these immigrants changed America.
This book explores the first settlements that were formed in America, discussing the explorers that made them possible and the reasons for the colonization.
This book chronicles the events that led up to the colonization of the Great Lakes region, discussing the reasons for the settlement of this area and the fate of the native inhabitants.
Chronicles the acquisition and settlement of the various territories that have not become states but are governed by the United States.
Explores the first settlements that were formed in America, discussing the explorers who made them possible and the reasons for the colonization.
Chronicles the Spanish exploration and early colonization of America.
Chronicles events that led to the colonization of the Great Lakes region, the reasons for settlement of the area, and the fate of the Native inhabitants.
Chronicles immigration to the United States, discussing how immigrants changed America.
This book takes a look at suicide bombers, how they commit the ultimate sacrifice for their own religious beliefs, and what is being done to prevent and possibly provide a cure for this particularly murderous form of attack.
Chronicles the Louisiana Purchase, the territory which reached from the Mississippi River to the Rocky Mountains, in 1803.
This book takes a look at the history of various ways to fight terrorism by spying and infiltration, including how high-technology has advanced.
Explains the CIA and the FBI, threats of terrorism, and the potential solutions to rid the world of terrorist attacks.
Explores places where terrorists hide and recruit, why they lead very secret lives, and some of the high-tech responses since 9/11.
Explains the Department of Defense and the State Department, threats of terrorism, and potential solutions to rid the world of terrorism.
Explains how the Department of Homeland Security works to fight threats of terrorism and develop potential solutions needed to rid the world of terrorism.
This book takes a look at the biological, nuclear, and chemical weapons that are known to be weapons of mass destruction, the history of human conflict, and how warriors have sought the best weapons for the most effective means of winning.