El magnetismo (Magnetism)

Newton's laws aren't the easiest science topics to digest. Struggling readers likely find understanding them even harder. This volume breaks down the topics of force and motion to its most basic and understandable parts, perfect to introduce to readers having a hard time or students looking to review for class. Written in succinct language, each chapter contains fact boxes and graphic organizers to aid all readers as they move from speed, to velocity and on.

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Este tomo te permitirá conocer mejor al canguro, un marsupial que sólo vive en Australia y Nueva Guinea. Las hembras de los canguros, como las de todos los marsupiales, poseen una bolsa o marsupio, en cuyo inteiror se amamantan las crías hasta que tienen ocho o diez meses. En este volumen se describen las diferentes variedades de canguro, desde el ualabi de cola corta, del tamaño de una rata grande, al canguro rojo, que mide más de dos metros de altura y pesa alrededor de setenta kilos.

Pocas personas han alcanzado el nivel de inteligencia que tuvo este hombre, ninguna de ellas ha sido tan importante para la humanidad y el mundo contemporáneo, como él. Considere Ud. que, sin este personaje y sus teorías sobre la relatividad y el tiempo, jamás podrían haber existido objetos como celulares o computadores... Por nombrar los dos más usados inventos actuales. Y, aunque suspendió el examen de ingreso en la Politécnica, la revista Time le nombró "personaje del siglo XX", seguramente porque sus aportaciones a la física revolucionaron los conocimientos de la era...

Simple text and illustrations introduce children to number concepts and teach them how to identify numbers.

This translated edition of My Holiday Memories Scrapbook for Kids, Translated Spanish Edition is printed in Spanish. It is the fifth scrapbook in the series and is especially designed for children to help them to remember their unique and joyful adventures through life. Scrapbooking provides an outlet of expression that may not be available in any other form. Families get involved and show their children how much they love them by helping them fill in the pages of this book to preserve family memories. When I was young, I had a baby book. My Holiday Memories Scrapbook for Kids, Translated...