¿Por qué hibernan los animales? (Why Animals Hibernate)

Jamás he escrito un libro con menos esperanza. Nadie me ha dicho nunca las cosas que me digo. No me importa que el otro No entienda mi palabra en la vida me quedo, por mi camino sigo. Pero sí estoy seguro de todo lo que siento. Me pasa a mí y me basta, yo lo sufro y lo vivo. Si hay alguien que comparta estas cosas que pienso, seremos dos. Iremos por el mismo camino.

Susan B. Anthony, Eleanor Roosevelt, and Hilary Clinton are just a few of the most well known names in politics for forging new paths for women in a traditionally male-dominated field. However, many lesser-known women groundbreakers have changed the world by stepping out of the background and onto the political stage. This biographical text covers the lives of fascinating women in politics, from the earliest suffragette movements to modern-day women who could one day become the first female president of the United States. Readers are encouraged to seek careers that could place them with this...

In this stimulating, Spanish-translated nonfiction book, readers will discover the various types of friction--including rolling friction, sliding friction, fluid friction, and static friction--and the huge impact it has on nature, machines, and our lives. In addition, readers are encouraged to perform basic experiments to assist in the understanding of friction, kinetic energy, and water resistance. With real-life examples, colorful images, accommodating graphs and charts, and informational text, this title will inspire and engage children.

Quaderns d'activitats trimestrals per consolidar i ampliar els continguts del llibre de l'alumne Aprenc a escriure en Primària, amb activitats de vocabulari, gramàtica, ortografia i expressió escrita.