Sexo para adolescentes

"Dino" Don Lessom brings readers face-to-face with various dinosaurs, detailing how they lived, raised their young, and became extinct. Maps, timelines, and colorful illustrations and photographs will capture kids' attention. A dinosaur expert, Don Lessem has written more than 30 children's books.

Hoy en día, prácticamente todo el conocimiento humano se encuentra al alcance de nuestra mano: basta hacer tres clics en Internet. Pero, ¿cómo llegamos a adquirir dicho conocimiento? Hicieron falta cientos y en ocasiones miles de años para comprender lo que en la actualidad nos parece evidente. El conocimiento es una aventura, una odisea extraordinaria cuyos pormenores se narran en esta colección. ¿A qué se parece el Universo? A lo largo del tiempo, esta pregunta ha dado lugar a las más diversas y contradictorias respuestas. El Universo fue redondo, luego plano, cortado en dos, luego ...

Read Along or Enhanced eBook: Welcome to the Caribbean! Readers are invited along to learn about a tropical paradise in this Spanish-translated nonfiction title that features vibrant, colorful photos, informational text, charts, and maps. From the delicious fruit to the exotic animals, children will be engaged from beginning to end.

Few natural forces seem as much like magic as magnets. Perhaps that’s why magnets are so fun! Young scientists will love learning about amazing magnets, both natural and man-made. They’ll discover how magnetism is harnessed to help us in many ways. This STEM-supportive volume contains comprehensible text and photographs of students and scientists utilizing magnets. It also includes a simple, fun concluding activity to encourage readers to use this super science tool themselves.