Los derechos humanos

A stinky look at the history of personal hygiene reveals fascinating facts, such as the invention of the toilet, how many times Queen Elizabeth I had a bath, how the first sewers were built, and much more.

"Discusses how people make sense of Earth by making maps and introduces globes, flat maps, and the idea of making borders"--Provided by publisher.

Many animals and insects build their homes in trees or visit trees to feed from their fruit, flowers, and leaves. Trees are not unlike great buildings, where creatures protect themselves—amongst their branches or in the nooks of their trunks—against predators or harsh weather. Trees are also of great use to human beings, as they provide us with food, shelter and medicines. The outstanding photographs in this book show how some animals relate to different tree species, while also revealing curious details of specific trees.

Con materiales disponibles en cualquier hogar y sin necesidad de complicados aparatos, puedes realizar sencillos y divertidos experimentos que te ayudarán a comprender mejor el fascinante mundo de los verdaderos amos de la Tierra, los insectos, tan necesarios para el equilibrio ecológico. Estos experimentos sobre los insectos no entrañan ningún peligro y no requieren el uso de sustancias ni materiales especiales. Son fáciles de realizar y están dirigidos a los niños que ya han alcanzado un nivel aceptable de lectura comprensiva, a partir de los 10 años. Dentro de esta nueva...