Caramelos pegajosos (Pulling Taffy) ebook

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

La increible y conmovedora historia de amor entre una niña y un león blanco, cómo nunca antes la habías visto.

Los niños aprenderán las frases y las palabras sencillas de español en este libro divertido y ilustrado, por ejemplo, ¿Hola, cómo estás? ¿Cómo te llamas? ¿Qué hora es? ¡Y más! (Children will learn simple Spanish phrases and words through this fun illustrated story, for example, How are you? What is your name? What time is it? And more!) Meet Philip and Martha, two young students who meet at school and become friends. Young learners will find the simple greetings, questions and statements easy to understand. Learn simple English words and phrases with the corresponding version...

Until just over 150 years ago, northern Mexico extended thousands of kilometers farther than its current border with the United States. Many different indigenous groups flourished in that region before the Conquistadors arrived. What we know about their lives and customs is the result of archeological discoveries and the chronicles of the first Spanish priests and soldiers that had contact with them.