Un día de trabajo de un biólogo molecular (A Day at Work with a Molecular Biologist)

¿Cómo combate mi cuerpo los gérmenes? ¿Los peces se hunden o flotan? ¿Por qué explotan los globos? ¿Se te ocurren muchas preguntas curiosas? ¡Este libro está lleno de respuestas alucinantes! Sus divertidas ilustraciones y asombrosos datos exploran todo lo que tiene de magnífico, maravilloso y misterioso el mundo de las ciencias. Esta entretenida colección ofrece respuestas a las típicas preguntas que hacen los niños. ¿Cómo se forma un arcoíris? ¿Por qué flotan los barcos? ¿Para qué sirven los bigotes de un gato? Estas y cientos de preguntas más, con sus respuestas,...

It s fiesta time! Cinco de Mayo is a fiesta day in Mexico and the United States. It s celebrated on the fifth of May. This colorful holiday honors Mexico s victory over the French army at the Battle of Pueblo in 1862. People march in parades, dance, and set off fireworks. Families enjoy traditional Mexican food and drink. Then they watch people act out the famous battle. Find out more about this joyful celebration of Mexican culture.

Internet security breaches have been in the news of late. Organizations, governments, businesses, and individual internet users are all at risk. This book introduces readers to the importance of cybersecurity and addresses the current risks from hackers, viruses and other malware, identity thieves, and other online perils. It provides concrete measures that young digital natives can take to protect themselves and their computers, smartphones, and other devices. This volume's lively, cautionary narrative and useful tips will help readers effectively defend their identities and data.

On a clear night, you should be able to see the stars. But we cannot always see them. Light pollution prevents us from seeing the stars and causes other problems as well. Learn about light pollution with this STEAM book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, it features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in...