¿Por qué hibernan los animales? (Why Animals Hibernate)

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

Do you want to set your imagination free? Do you want to dream up amazing ideas and incredible inventions? You can! This book is all about getting creative. Anyone can do it. So get ready to start thinking outside the box! This full-color nonfiction reader will engage students in reading while introducing them to new vocabulary terms and concepts. Important text features include a glossary and a table of contents to develop students' comprehension and literacy skills. This Spanish book aligns with national and state standards and features exciting TIME For Kids content to keep English...

Describes the impact of the Ford Model T automobile and the assembly line that built it on the automotive industry and American society, and recounts the life and career of their inventor, Henry Ford.

Discusses the origins of corn, its use in Latin America, its spread throughout the world, different kinds of corn, and other uses for corn products.

Chile offers complete coverage of this fascinating country, including sections on history, geography, wildlife, infrastructure and government, and culture. It also includes a detailed fact file, maps and charts, and a traceable flag.