La carta de derechos

Eco-Friendly Energy Is Explained. The Most Current Information Is Provided While Establishing The Understanding That It Does Not Take Much To Make The World A Better Place.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Learn all about the amazing things your brain does and how to keep it healthy and strong! Readers will discover the anatomy of the brain including neurons, the cerebellum, and the nervous system. Using vibrant images and informational text in conjunction with supportive diagrams, this Spanish-translated nonfiction title encourages readers to learn all about (and use) their brains. This 6-Pack includes six copies of this title and a lesson plan.

Con poemas traducidos por Margarita Engle, ¡Bravo! brilla en esta versión al español. Músico, botánico, jugador de béisbol, piloto—los Latinos incluidos en esta colección provienen de muchos países diferentes y de muchos backgrounds diferentes. ¡Celebre sus logros y sus contribuciones a la historia colectiva y a una comunidad la cual continúa evolucionando y prospera el día de hoy! ¡Bravo! incluye poemas biográficos sobre: Aida de Acosta, Arnold Rojas, Baruj Benacerraf, César Chávez, Fabiola Cabeza de Baca, Félix Varela, George Meléndez, José Martí, Juan de Miralles,...

If a person were ever face-to-face with a huge, hungry animal with sharp teeth, they probably wouldn’t care exactly what that animal was! But from a safe location, can we tell whether it was a crocodile or alligator that wanted to take a bite? By examining their jaw structure, teeth, and other physical features, we can easily tell these two animals apart! Graphic organizers and amazing images highlight each animal’s habitat and other small differences between the two fearsome creatures, showing readers just what creature is lurking below the waters.

Introduces the life and times of Underground Railroad and anti-slavery leader Harriet Tubman and explains her place in American history.