Las casas en el mundo (Homes Around the World)

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...

Deserts are the driest places on Earth, but they’re full of life! Cacti, kangaroo rats, shrubs, foxes, and more have found ways to adapt to the extreme temperatures and dry conditions of deserts around the world. Readers learn about many of these adaptations as well as the major features of the desert biome. Simple maps highlight some of the biggest deserts, helping readers learn map skills. Full-color photographs reinforce accessible information about the desert ecosystem, including a concluding message of conservation.

You re growing up and your body is changing. If you re a girl, you re likely experiencing the start of menstruation, your breasts are making themselves known, and you re noticing new hair that you might want to be rid of. If you re a boy, you may be experiencing something strange as you sleep, or sweating a lot and not wanting to shower. This book is a complete guide to the terrible and marvelous world of puberty."

Primero fue el Big Bang. Despus se form nuestra galaxia. Ahora vamos todos lanzados a travs del espacio a la velocidad de la luz, junto con billones de otros planetas, estrellas, satlites, meteoros, cometas, asteroides, meteoritos y Dios sabe cuantas cosas ms.Este asombroso libro te proporciona informacin minuciosa de nuestra galaxia y mucho ms all. Saltars de excitacin al hacer una gran gira por el sistema solar, donde esquiars en Marte y conocers al triste compaero de Plutn. Te dejarn sin aliento algunos datos increbles acerca de gigantes rojas, enanas blancas y supernovas. Adems,...