Fiesta de disfraces

Many people depend on blue crabs from the Chesapeake Bay for their jobs. But overfishing and changes in the blue crabs' habitats have reduced their numbers. Learn how scientists have stepped in to study these blue beauties so that they can keep a healthy crab population. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational 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 of the engineering design process and is...

Este texto de la colección "El juego de la ciencia" tiene por objetivo enseñar de forma didáctica una serie de experimentos científicos que sorprenden, en este caso, en el campo de la Meteorología. De forma lúdica podrás entender el origen de los climas que se dan en la tierra y disfrutarás de los espectáculos que de alguna forma suponen los fenómenos climáticos. Así, con estos libros experimentas el mundo de la ciencia utilizando materiales que están disponibles en el hogar y que te permitirán comprender de mejor manera la meteorología, por ejemplo, creando una nube dentro de...

Describes To Young Readers What Flippers Look Like, That Some Animals Use Flippers To Swim Or Crawl, And Tells Of Different Animals That Have Flippers.

Readers are introduced to some of the most well-known criminals and tyrants of the past in this exciting nonfiction reader. Featuring intriguing facts and theories, colorful images, and informational text in conjunction with a glossary of terms, a bibliography, and a list of helpful websites with more information, this text will make readers want to learn all they can about ancient history and the bad guys and gals from the past. This book has been translated into Spanish.