La carta de derechos

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

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!

Imagina una carrera en la que te paguen por dibujar todo el día. ¡Eso es lo que hacen los ilustradores botánicos! Adéntrate en la mente de un ilustrador botánico y descubre cómo sus intrincados dibujos de plantas ayudan a la ciencia. Creado en colaboración con la Institución Smithsonian, este libro en español despierta la curiosidad sobre los temas de STEAM a través de ejemplos del mundo real. Cuenta con un desafío STEAM práctico que guía a los estudiantes de inglés a través de cada paso del proceso de diseño de ingeniería. Inspire a los estudiantes a seguir una carrera en...

Veteran’s Day is a day set aside to thank the men and women who risk their lives protecting America. Each year on November 11, we celebrate what they have done for our country. Learn more about the history of this important holiday, such as why it is on November 11 and what Americans do to celebrate.

A car accident left Elsa in a coma. One day Thibault enters the room and starts talking to her without waiting for an answer. Everyone is convinced that she is unconscious, but she's begun to hear and understand what is happening around her. As everybody have given up hope for recovery, Thibault is engaging a relationship with her.