Take an in-depth look at astronomy and space in this science encyclopedia.
Take an in-depth look at earth science in this encyclopedia.
Take an in-depth look at human life in this science encyclopedia.
What happens to the environment when a hurricane occurs? What are some of the causes of hurricanes? What can people do about the problems caused by hurricanes? How can you use your math skills to learn more about hurricanes? Read this book to find the answers to these questions and learn more about hurricanes..
What happens to the environment when a flood occurs? What are some of the causes of floods? What can people do about the problems caused by floods? How can you use your math skills to learn more about floods? Read this book to find the answers to these questions and learn more about floods.
What happens to the environment when a tornado occurs? What are some of the causes of tornadoes? What can people do to protect themselves from tornadoes? How can you use your math skills to learn more about tornadoes? Read this book to find the answers to these questions and learn more about tornadoes.
What happens to the environment when a tsunamis occurs? What are some of the causes of tsunamis? What can people do about the problems caused by tsunamis? How can you use your math skills to learn more about tsunamis? Read this book to find the answers to these questions and learn more about tsunamis..
What happens to the environment when a volcanic eruption occurs? What are some of the caused by volcanic activity? What can people do about the problems caused by volcanic eruptions? How can you use your math skills to learn more about volcanic eruptions? Read this book to find the answers to these questions and learn more about volcanic eruptions.
A tour of the Mississippi River and its surrounding area.
The reader follows a student's journal as the student learns about geothermal power as an energy source. This engaging title includes how humans used geothermal power in the past, how we use geothermal energy today, and how we may use it in the future.
The reader follows a student's journal as the student learns about oil and coal as an energy source, including how we used oil and coal in the past, how we use it today, and how we may use oil and coal in the future.
Following a student conducting research, the reader learns about water power as an energy source. This exciting title includes how humans used water power in the past, how we use energy from water power today, and how we may use it in the future.
The reader follows a student's journal as the student interviews experts about wind power as an energy source. This engaging book covers wind power's history, how we use wind power today, and how we may use the wind as an energy source in the future.
This colorful book describes the geological makeup and history of the Kalahari Desert in Africa. Covering most of Botswana, as well as portions of Namibia and South Africa, the Kalahari is not a true desert because it receives more than ten inches (250 mm) of rain each year. But the rain drains and evaporates quickly leaving no water on the surface of the red sand. Readers will learn about the variety of habitats in this vast desert system that support many different kinds of plants and animals such as springboks, giraffes, elephants, and zebras. Special sections also describe the Kalahari's natural resources, indigenous people, and the unique problems facing this region.
This intriguing book describes the geological makeup and history of the Gobi Desert in Mongolia and China. Temperatures can get very cold and frost and snow are not unusual. Readers will learn about the variety of habitats in this vast desert system that support many different kinds of plants and animals such as camels, snow leopards, and bears. The Gobi Desert is also where the first dinosaur egg fossils were found. Special sections describe the desert's natural resources, such as copper and gold, and the unique problems facing this region such as the desert's alarming rate of desertification.
Learn what it takes to become a member of the U.S. military's special operations forces.
Learn what it takes to become a pararescue jumper in the U.S. military.
A guide to what a climate scientist does and how to become one.
