15 Ergebnisse.

The first dinosaur fossils discovered were found in England in the 1820s. The oldest fossil ever found is more than 3 billion years old. Learn more in Fossils, one of the titles in the Geology series.

The largest earthworms can grow up to 12 feet (3.7 meters) long. A spoonful of garden soil may contain 1 million fungi. Learn more in Decomposers.

The largest earthworms can grow up to 12 feet (3.7 meters) long. A spoonful of garden soil may contain 1 million fungi. Learn more in Decomposers, one of the titles in the Nature's Food Chains series.

The Sahara Desert is 3.3 million square miles (8.6 million square kilometers) in size. It is so large that the entire continental United States could fit inside it. Discover more in Sahara Desert, one of the titles in the Natural Wonders of the World series.

The Sahara Desert is 3.3 million square miles (8.6 million square kilometers) in size. It is so large that the entire continental United States could fit inside it. Discover more in Sahara Desert, one of the titles in the Natural Wonders of the World series.

The first dinosaur fossils discovered were found in England in the 1820s. The oldest fossil ever found is more than 3 billion years old. Learn more in Fossils, one of the titles in the Geology series.

To reach the top of Mount Everest is to stand on the top of the world. The summit, or top of the mountain, soars 29, 035 feet (8, 850 meters) in the air. Learn more in Mount Everest, one of the titles in the Seven Summits series.

To reach the top of Mount Everest is to stand on the top of the world. The summit, or top of the mountain, soars 29, 035 feet (8, 850 meters) in the air. Learn more in Mount Everest, one of the titles in the Seven Summits series.

Decomposers get their energy by eating and breaking down dead plants and animals. Bacteria are a type of decomposer so tiny that millions of them could fit in a space as small as the point of a pencil. Learn more about decomposers and their important role in the food chain in Decomposers, a Fascinating Food Chains book.

Decomposers get their energy by eating and breaking down dead plants and animals. Bacteria are a type of decomposer so tiny that millions of them could fit in a space as small as the point of a pencil. Learn more about decomposers and their important role in the food chain in Decomposers, a Fascinating Food Chains book.

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Wonders of the World leads young readers on a fascinating tour of some of the worlds greatest geographical features. Each book in the series teaches geography skills and reveals fascinating facts. Readers will learn how human activity modifies the physical environment and how culture influences peoples perceptions of places and regions. Colorful photographs, detailed maps, informative charts, and classroom activities highlight the features of ...

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Discusses how fossils form, where some of the most unique fossils have been discovered, how fossils help paleontologists learn about dinosaurs, and more.