¿Cómo crece el pasto? (How Does Grass Grow?)

Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...

Find out how tools have helped people hunt, build, and make life easier in this engaging, Spanish-translated nonfiction title. With colorful images, timelines, charts, a glossary to assist with vocabulary improvement, and an index, children will learn how tools throughout time have made such an important impact on life as we know it! Featured eras include the Stone Age and the Industrial Revolution.

Surveys the life of the American statesman, lawmaker, writer of the Federalist Papers, and first secretary of treasury under George Washington.

¿Alguna vez te han sucedido cosas que no tienen una explicación lógica? ¿Cajones que se abren solos, cosas que se pierden misteriosamente, risitas que no se sabe de dónde vienen? A Víctor le acaban de poner gafas y desde el momento en el que sale de la óptica se da cuenta de que ve demasiado bien. ¿Por qué demasiado bien? Pues porque ahora ve unos bichos que antes le resultaban invisibles, los Krippys, que conviven con los humanos y que son responsables de muchas cosas que antes no entendía. Pronto aprende que hay Krippys de mil formas, pero Víctor les ve a todos algo en común y...