Relieves de la Tierra

The Earth is made up of shapes. The shapes make up landforms. Find out about all of Earth’s landforms. Paired to the fiction title A Long Car Ride.

It takes different parts to build a house. The floor is built first. Walls need to be added next. Windows and doors, too. Learn about the steps it takes to build a house. Paired to the fiction title We Have a Box.

Brush your teeth up and down to keep your teeth healthy and your smile beautiful. Brushing your teeth is easy. Paired to the fiction title My Routine.

Samuel Temkin es Catedrático Emérito de Rutgers University en Nueva Jersey, Estados Unidos. Reconocido internacionalmente por sus investigaciones y libros en el campo de la Acústica, el doctor Temkin se ha dedicado en los últimos años a la historia del Nuevo Reino de León, de la cual ha publicado varios artículos de investigación y dos libros, el último sobre Gaspar Castaño de Sosa.

Esta primera novela de Fernando Claudín es un relato breve pero de una intensidad y hondura tales que sobrecogerá al lector y lo hará reflexionar sobre algunos de los grandes problemas pendientes de nuestro tiempo.

Discusses the discovery and escavation of King Tutankhamen's tomb and the myth of the curse that seemed to afflict those involved in the tomb's exploration.

Forces and motion are key concepts in the elementary science curriculum. This Spanish edition of How Simple Machines Work uses simple text and full-color photographs to help ELL students understand the principles behind simple machines. Each volume includes three diagrams to enhance comprehension. The text uses authentic language and is designed to build reading skills as well as knowledge of basic science concepts.