La carta de derechos

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

Young students will be enthralled with compelling portraits of famous figures who devoted their lives to improving the world. Includes historical photos and illustrations.

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

Get On A Covered Wagon And Explore Everything About Pioneers With This Book. From What They Ate, Wore, Who They Encountered And Where They Traveled. Text Boxes Filled With Pioneer Facts Add Additional Information On The Pioneers Difficult Journeys To Unknown Lands.

Explains the process of making a book by following the production of Nancy Carlson's book, "It's Not My Fault!," through its stages of writing, illustrating, editing, designing, printing, and binding.

Invierno, primavera, verano y otoño—las estaciones son uno de los ciclos más familiares de la naturaleza. Pero, ¿por qué cambia el clima? Aprenda por qué los patrones climáticos cambian a lo largo de las estaciones. Winter, spring, summer, and fall—the seasons are one of nature's most familiar cycles. But why does the weather change? Learn why weather patterns change over the seasons.

Seis títulos componen esta original colección, que recrea emotivas historias en las que los protagonistas (animales) hojean un álbum de fotos en el que pueden rememorar los momentos más entrañables de su vida en familia. Estos libros invitan a los niños y niñas a coleccionar dibujos, fotografías... para imitar al personaje, desarrollando de esta manera una actividad muy creativa e interesante para su desarrollo emocional. Concha López Narváez, autora consagrada y merecedora de numerosos premios, ha escrito los textos. Las ilustraciones de Rafael Salmerón reflejan, con gran calidad...