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En este libro, los estudiantes escuchan mientras los científicos, agencias gubernamentales y grupos de trabajo ambientales debaten y discuten el futuro de los combustibles fósiles. Los lectores descubrirán que los suministros de combustibles fósiles son limitados, las formas de conservar esta importante fuente de energía y cuáles son algunas de las fuentes de energía alternativas y más limpias. -
¿Puedes patinar sobre hielo y escalar rocas en medio del océano? Puedes hacerlo si estás en un crucero. Los cruceros lo tienen todo. Sus lectores navegarán por este libro mientras leen todos los hechos sobre la vida a bordo de un gran barco. -
Some of the most important contributors to the food chain are those creatures that help break things down: decomposers. If not for these birds, bugs, and worms organic matter couldn't be recycled back into nature. Readers will discover the different kinds of decomposers, how they do their job, and why it is so important. This fascinating book includes graphic organizers and annotated illustrations to better explain the food chain. -
Los derrames de petróleo tienen un grave impacto en el medio ambiente, matando innumerables especies silvestres, destruyendo hábitats importantes y contaminando nuestras aguas. Los lectores siguen a un grupo de voluntarios mientras aprenden sobre lo que los derrames de petróleo le hacen a nuestro medio ambiente, qué medidas se pueden tomar para limpiar después de los derrames de petróleo y las formas de evitar que ocurran futuros derrames. -
Kids will learn all about desert plants, creatures, and much more in this fact-filled book about deserts. -
Introduces detection rats, most of which are African pouched rats, the largest rat in the world, and explains that rats can be trained to find land mines and dangerous diseases. -
Doctors Without Borders provides medical attention to those in need. This remarkable organization has even won a Nobel Peace Prize for its services. Students will be inspired as they read about the good deeds of this organization. -
Introduces helicopters and the work that they do in a variety of emergency situations on land and over water. -
Kids will learn all about electricity and magnetism through these fun and easy-to-follow experiments. -
Kids will learn all about forces through these fun and easy-to-follow experiments. -
Kids will learn all about heat through these fun and easy-to-follow experiments. -
Kids will learn all about light and sound through these fun and easy-to-follow experiments. -
Kids will learn all about plants through these fun and easy-to-follow experiments. -
Kids will learn all about solids, liquids and gases through these fun and easy-to-follow experiments. -
Explains what canyons are, how they are formed, and where they can be found around the world. -
Introduces caves, describing their characteristics, different types, and the animals that live in them. -
Introduces glaciers, describing their formation, geography, and effects on the surrounding land and people. -
Describes the formation of islands and the development and variety of plant and animal life on different islands. -
Describes the formation, flora and fauna, and geography of the world's mountains, including the Rockies and Mount Everest. -
Discover Earth's amazing peninsulas in this fun and informative book. Readers will learn about the formation of peninsulas, learn about different kinds, and explore some of the world's most famous peninsulas. Stunning photography captures the natural beauty and life on this landform. -
Introduces the flamingo and briefly describes its appearance, habits, diet, and young. -
Introduces some of the animals that live in American temperate forests and tropical rain forests, including such creatures as the black bear, great horned owl, garter snake, Hawaiian honeycreeper, and coqui frog. -
Introduces the fundamentals of energy, including its different forms, how it is stored, and how people use it. -
Introduces the life and accomplishments of George Washington, the first president of the United States. -
Describes the physical characteristics, habitat, and behavior of gorillas, African mammals that live together in groups known as troops, in which they raise their young and groom each other. -
Greenland is more than 84, square miles. The worlds largest island also has many other extraordinary qualities that make learning about this island fun and exciting. The unique way of life in Greenland as well as the variety of animals on the island will fascinate young readers. -
Groenlandia tiene más de 840,000 millas cuadradas. La isla más grande del mundo también tiene muchas otras cualidades extraordinarias que hacen que aprender sobre esta isla sea divertido y emocionante. La forma de vida única en Groenlandia, así como la variedad de animales en la isla fascinarán a los jóvenes lectores. -
Introduces banks, including the different types, their function, and why they are important to both investors and the common public. -
Introduces credit cards and discusses their advantages and disadvantages. -
Introduces the hyena and briefly describes its appearance, habits, diet, and young.
