This book takes a scientific look at global warming. Reading Essentials in Science.
Level 2 guided reader that teaches the young reader important concepts about lakes, how they are formed, their importance in the ecosystems, and ways to keep them clean.
Why do people need rivers? What causes rivers to flood? These are just a few of the questions answered by this fascinating introduction to rivers by Bobbie Kalman. Topics include the paths of rivers, how rivers carve through rocks, types of rivers, waterfalls, headwaters, tributaries, estuaries, deltas, fiords, river plants and animals, people and rivers, and famous rivers.
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.
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 book is an introduction to biomes and ecosystems and provides background for the in-depth discussion of the freshwater river biome. Reading Essentials in Science.
This book discusses how Earth is made of rocks and minerals. Reading Essentials in Science.