Las mejores fábulas mitológicas

Recounts the life of the Puerto Rican baseball star from his childhood poverty to his career with the Pittsburgh Pirates, and discusses his humanitarian efforts, his untimely death, and his contributions to the sport.

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...

Readers learn about this famous explorer who crossed the Atlantic Ocean to reach the Americas. Bright, engaging, colorful photographs and illustrations will thrill readers.

Darwin se dio a la tarea de observar diferentes especies de plantas y animales y así concluyó que todas ellas se modifican de acuerdo con las condiciones del entorno en el que viven y las características que necesitan adoptar para lograr su supervivencia. En El origen de las especies encontrarás conceptos como selección natural, evolución y variabilidad, que todavía son válidos en el estudio moderno de las ciencias naturales.