Los huesos de Descartes

There are many steps in the nitrogen cycle that include difficult concepts and words: denitrification, prokaryotes, ammonia, and more. With the help of this understandable book, even struggling readers will grasp this cycle of nature. Low-level language, fact boxes, and an extended glossary provide readers with essential vocabulary explanations that allow them to further understand each step of the cycle. Full-color diagrams aid readers' comprehension as they move through the cycle from start to finish, and then around again.

On July 20, 1969, Neil Armstrong made history by becoming the first man to ever walk on the moon! Readers will be engaged from cover to cover as they learn about Armstrong's inspirational career as an astronaut in this biography that features additional information on gravity, NASA, and the moon landing. The vivid images work in conjunction with the supportive text, timeline, glossary, and index to allow for better understanding of the content. This book has been translated into Spanish.

Readers will set their eyes to the night sky in this fascinating book about astronomers. This volume is a perfect combination between STEM and career guidance as it introduces readers to the different ways astronomers use science, technology, engineering, and math in their work every day. Readers will love learning about celestial bodies and space phenomena, as well as the different processes and equipment astronomers use to observe, collect, and analyze data. This book also covers the steps a person can take to become an astronomer. The curriculum-based information in this book is conveyed...

Obra de gran utilidad para cualquier persona interesada en usar el idioma con corrección. fluidez y precisión.