El libro de las respuestas a todos los porques / The Answer book on all the Whys

Two books in one, this oversized volume shows readers the plants, root systems, insects, fossils, animals, mines, gems, minerals, and man-made wonders such as tunnels, subways, submarines, pipes, cables, and power lines that can be found underground or underwater in an unforgettable visual way. Each page takes you deeper and deeper under the waves or through layers of earth.

Inspirándose en el gran astrónomo y divulgador Carl Sagan, Fernando J. Ballesteros y Bartolo Luque reúnen en este volumen quince pequeños ensayos destinados a despertar en los lectores el mismo estímulo y fervor que despertaron en ellos los de su modelo. Con sencillez, amenidad y rigor, 10.000 AÑOS MIRANDO ESTRELLAS (título que hace referencia a los testimonios más antiguos de esta actividad del hombre sobre la Tierra) aborda los asuntos del cosmos que sin duda llaman más la atracción del lector actual: la composición y el origen del universo, los agujeros negros, el comportamiento ...

The highest law in the United States isn't written in modern English. Yet students are expected to know and understand much of what it says, as well as facts about how and why it was written. Readers are presented with the most important points of the history of the Constitution and its contents in this book. The main content gives simple explanations of important social studies curriculum topics, from the compromises needed to write the Constitution to the Bill of Rights. Fact boxes, a concluding timeline, and historical images offer readers even more detail needed for a full overview of the ...

Read Along or Enhanced eBook: Help readers make a difference by encouraging them to learn about the various ways the environment needs our help and the things they can do to reduce their carbon footprint. Readers will learn about the effects of pollution, fossil fuels, renewable and non renewable resources, deforestation, and recycling through interesting images and charts and informational text. This Spanish-translated nonfiction title features a glossary of terms and a list of helpful websites that encourages children to take part in helping the environment in many different ways.