Technology Nonfiction

¿Qué tienen en común y en qué se diferencian los cangrejos y las langostas? Aunque ambos animales viven en el océano, uno prefiere nadar y el otro caminar. Uno puede ser encontrado en pozas costeras y el otro en alta mar. Ambos tienen esqueletos en la parte externa de sus cuerpos. ¡Hay mucho más sobre estos animales además de ser un buen alimento para nosotros! Aprende sobre estos crustáceos fascinantes en la edición más reciente de la serie de Un libro de comparaciones y contrastes.

Las focas y los leones marinos tienen un aspecto similar y algunas veces es complicado saber cuál es cuál. Ambos mamíferos marinos nadan con aletas y pueden encontrarse en océanos alrededor del mundo. Uno tiene orejas visibles, mientras que las orejas del otro no son externas. Uno atraviesa el agua utilizando sus aletas traseras, mientras que el otro usa sus aletas frontales para nadar. Ya sobre tierra, uno rebota hacia sus alrededores, mientras que el otro puede “caminar” sobre sus aletas.

¿Sabías que hay más insectos que cualquier otro grupo de animales? La diversidad de insectos es asombrosa. ¿Qué tienen en común las hormigas con las abejas? ¿Cuál es la diferencia entre una mariposa y una polilla? ¿Cómo están relacionados los gorgojos y las mariquitas? Algunos insectos tienen un par de alas, otros tienen dos pares y hay algunos que no tienen alas. Algunos insectos, aunque no todos, tienen un caparazón duro y externo (exoesqueleto). Aprende en qué se parecen y diferencian los insectos en esta nueva entrega de la serie de Comparaciones y Contrastes.

Welcome to "A-Z Alphabet, Astronomy & 'I Am' Affirmations for Kids." This journey combines cosmic exploration with self-empowerment, guiding children through an adventure of learning and affirmation.

You're probably familiar with many of the common categories scientists use for animals: warm-blooded or cold-blooded, nocturnal or diurnal. But what about the animals that don't fit in? Sharks cannot be classified as warm or cold-blooded—they are somewhere in-between. And Eurasian eagle owls don't hunt during the day or night. Instead, they swoop through the trees at dawn and dusk. Author and science educator Jessica Fries-Gaither introduces eight common categories scientists use and the animals that break those rules.

Jackals will eat almost anything. On the African savanna, they will even steal food from much bigger animals, like lions. Learn more about the lives of jackals.

Emma Lilian Todd's mind was always soaring—she loved to solve problems. Lilian tinkered and fiddled with all sorts of objects, turning dreams into useful inventions. As a child, she took apart and reassembled clocks to figure out how they worked. As an adult, typing up patents at the U.S. Patent Office, Lilian built the inventions in her mind, including many designs for flying machines. However, they all seemed too impractical. Lilian knew she could design one that worked.

Sea monsters have a long history in lore and literature. Homer first wrote of them in 700 BCE. What Do We Know About the Kraken? lets curious young listeners explore what we actually know about this mysterious sea monster's long history. Dive into the facts behind this massive squid-like creature that was first described using the word "Kraken" in the beginning of the eighteenth century.

In this audiobook, we’re going to appreciate the value of money based on how it is created. What machines make the coins and paper bills? Technology has evolved from then and now, but it’s always to make things work faster and better. What is your favorite part in the process of making money?

The inspiring stories of six people who changed history. Contents: Antoine Lavoisier, who wrote the first modern chemistry textbook; Humphry Davy, who discovered 'laughing gas'; Charles Darwin, who changed people's ideas with his theory of evolution; Gregor Mendel, who first discovered the science of genetics; Louis Pasteur, who saved millions of lives by killing germs; Francis Crick, who helped to discover the structure of DNA.

The inspiring stories of six people who changed history, including Alessandro Volta, inventor of the battery; Michael Faraday, inventor of the electric motor; Marie Curie, famous for her work on radioactivity; Albert Einstein, creator of the theory of relativity; Alexander Fleming, discoverer of the first antibiotic; and Linus Pauling, chemist and peace activist.

Welcome to the United States of America! The USA is the third largest country in the world and also, one of the most beautiful. It is full of lakes and rivers, mountains and canyons, beaches and deserts. It has many different trees and flowers and all sorts of different crops grown for use as food. And, of course, America has birds and animals of all kinds. Last, but not least, the United States has about 300 million people from many different backgrounds and cultures.

What's so great about California? Find out the top 10 sites to see or things to do in the Golden State! Explore California's beaches, mountains, film studios, and colorful history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in California.

What's so great about Minnesota? Find out the top 10 sites to see or things to do in the North Star State! Explore Minnesota's wooded wilderness, 10,000 lakes, and rich history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Minnesota!

Pack your bags! We're headed to South Korea. On this whirlwind tour, you'll learn all about the country's landscape, culture, people, and more. We'll explore coastal islands and mountain ranges, enjoy traditional pansori music, and try a popular dish of pickled vegetables. A special section introduces South Korea's capital, language, and population. Hop on board and take a fun-filled look at your world.

What's so great about Georgia? Find out the top 10 sites to see or things to do in the Peach State! Explore Georgia's stunning scenery, buzzing cities, and exciting history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Georgia!

What's so great about Texas? Find out the top 10 sites to see or things to do in the Lone Star State! Explore Texas's rodeos, wild places, oil fields, and rich history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Texas.

What's so great about Colorado? Find out the top 10 sites to see or things to do in the Centennial State! Explore Colorado's snowy mountain peaks, wild rivers, and rich history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Colorado!

What's so great about Florida? Find out the top 10 sites to see or things to do in the Sunshine State! Explore Florida's endless beaches, thrilling theme parks, and stirring history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Florida!

What's so great about Massachusetts? Find out the top 10 sites to see or things to do in the Bay State! Explore Massachusetts's beautiful beaches, bustling harbors, scenic trails, and rich history. A special section provides quick state facts such as the state motto, capital, population, animals, foods, and more. Take a fun-filled tour of all there is to discover in Massachusetts.