Louis Pasteur

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

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

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

Design a flexible protective layer for a space suit. Space suits have come a long way. The look and function of space suits has evolved over time, but their purpose has always been the same--to keep astronauts safe. From the first suits worn during the Mercury missions, to the latest suits being tested by NASA, there have been great improvements. Learn all about the science behind space suits and how they have changed over time. Created in collaboration with the Smithsonian Institution, this Spanish Smithsonian Informational Text builds reading skills while engaging students' curiosity about...

History is full of unsolved crimes, mysterious disappearances, and strange sightings. Readers will discover some of the most well-known mysteries in history--including Amelia Earhart, Big Foot, and the Salem Witch Trials--in this fascinating, Spanish-translated nonfiction book. Featuring detailed images, intriguing facts, and informational text in conjunction with a glossary of terms and an index, readers will be enthralled from beginning to end!

Presents pairs of photographs of similar items, including a hot dog and an ice cream cone, and the sun and the sea, to introduce the difference between hot and cold.

Cuando David Houlding descubre lo difícil y dura que se está convirtiendo su juventud, sufre un síndrome real llamado Hikikomori, que lo aísla por completo de la que él considera una sociedad plástica, y pasa cuatro años encerrado en su habitación. Esto provoca una depresión, desencadenada a su vez por los actos de algunas personas que son muy importantes en su vida. Quizá nuestra realidad no sea tan diferente a la de él.