Cómo funcionan los ecosistemas

The Industrial Revolution was one of the most dramatic eras of all time, filled with fascinating people, strange events, and incredible stories. This period of great change comes into sharp focus through each spread with detailed, accessible language. Each fact is complemented with vivid, carefully-chosen historical images and illustrations, and a caption that adds just a touch more history. Readers are drawn deep into the facts not covered in history textbooks, like working conditions, inventions, failures, and characters, to make this important history lesson fun and engaging.

Provides encouragement and advice for facing life's challenges, just for girls, with blank spaces to fill in goals and accomplishments.

Descubre a 25 supercient�ficas que cambiaron el mundo y demostraron que �las chicas son de ciencias! #ChicasDeCiencias �Sabes cu�ntos descubrimientos cient�ficos debemos a las mujeres? Aunque en los libros de historia parezca que las ciencias son cosa de hombres, de eso nada: desde Agnodice, la primera m�dica conocida de la historia, hasta Rosalind Franklin, la qu�mica que descubri� la estructura del ADN, pasando por Vera Rubin, la astr�noma que vio lo que nadie ve�a, las mujeres han sido pioneras en ciencias desde el inicio de los tiempos. Y aun as�, �podr�as...

It is July 4 and you are going to see the fireworks. But do you know why? It's Independence Day! Turn the pages of this book to find out why our country had to win its freedom, what happened on July 4, 1776 that makes this day special, why we watch fireworks on July 4. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.