Cómo ayudar a un amigo que está deprimido (Helping a Friend Who Is Depressed)

What does swimming in a pool, drinking through a straw, breathing in air, and circulating blood all have in common? They all require a form of air or water pressure! Readers will discover the variety of ways that air and water pressure make an impact on our lives and the things in them. This fact-filled, Spanish-translated nonfiction title includes real-life examples and basic experiments to aid in the development of understanding physic and scientific concepts. Readers will be introduced to and learn about Archimedes Principle, atmospheric pressure, vacuums, water density, and hydraulics...

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.

Acuciosa biografía de Jules Verne, el autor de los Viajes Extraordinarios, enriquecida con textos e información novedosa. Constituye un mágico paseo por los sinuosos y complejos acontecimientos vitales que propiciaron la creación de su obra.

Find out what sets the human life cycle apart from other living things in this informative, Spanish-translated nonfiction title. With intriguing facts, informational text, and vibrant photographs, children will be introduced to the biological phases of our life cycle--from infancy to adulthood.