Medida del tiempo en las carreras (Timing Races) (Spanish Version)

Why do we need water to live? Find out in this informative title that explains the importance of water to all living things.

En el diario de Kepa, un chico de Bilbao, el nombre de Sofía, una pija que va a su mismo instituto, aparece mucho más que otros nombres. Sofía es especial... pero, ¿se puede evitar que por el camino de este tipo de personas se crucen a veces seres despreciables? Una novela en la que se muestra la fuerza del amor en la superación de las dificultades.

Before there was the U.S. Constitution, there were the Articles of Confederation. Readers discover the story behind the first written constitution of the United States—from the factors that inspired its creation to the reasons why it was replaced. The detailed main text is enhanced by informative sidebars and graphic organizers. Historical images, including relevant primary sources, allow readers to immerse themselves in this historical period. Readers are given the chance to thoroughly examine elements of the original document, making them feel like true historians. They’re sure to enjoy ...

Qué es el Sol? El sol es una estrella, una bola de gases muy calientes. Es una fuente de vida, de calor y luz. Este libro es parte de la colección Altea Benjamín, la enciclopedia para responder a las preguntas de los niños que ya leen solos. ENGLISH DESCRIPTION How old is the Sun? What did humans think about the Sun in ancient times? How can sunbeams be trapped? Our most important source of life, light, and energy is just a ball of hot gas...! This book is full of information so amazing as the Sun itself.