Read about the invention of certain tools, and how they have been improved over time to become the technology we use today.
The only way we can learn about dinosaurs is by studying their fossils. Read about how comparing fossils shows us how different dinosaurs moved, what foods they ate, and how they protected themselves.
Earth was a lot different when dinosaurs were alive. They lived alongside many ancient mammals that can no longer be found. Incredible changes on Earth have left us with fossils that scientists use to learn more about the ancestors of today's mammals.
Earth was a lot different when dinosaurs were alive. Lush, deep forests once grew where we now have frozen oceans and glaciers. Even though there have been incredible changes on Earth, there are some ancient plants that are still living today!
Earth was a lot different when dinosaurs were alive. Scientists study important clues that were left behind to learn what kinds of dinosaurs lived where, what they ate, and how fast they could run. Even though there have been incredible changes on Earth, there are still dinosaur relatives living today!
Earth was a lot different when dinosaurs were alive. Back then, the world's oceans were ruled by large sea monsters. Even though there have been incredible changes on Earth, there are still sea monster relatives living today!
Como parte de la ciencia única, la serie Know-It-Alls! Cuenta con impresionantes portadas y texto atractivo, ¡este libro pone el enfoque en Momias! ¿Sabias que la momia del faraón Khufu fue colocada en lo que se llama la Gran Pirámide? Es la estructura de piedra más grande del mundo, que consta de 2.300.000 bloques de piedra, ¡cada uno pesa varias toneladas! ¡Esa es una gran lápida! Las ilustraciones increíbles de la vida y las cajas informativas de la estadística, llenas de hechos interesantes, hacen este libro de 24 páginas diversión y emocionante para los entusiastas jóvenes de la ciencia de edad 4 y arriba! ¡Títulos en el Know-It-Alls!
¿Imaginas caer en picado a través del aire como un Hatzegopteryx, un gigante de los cielos antiguos? El Hatzegopteryx (hatz-eh-GOP-ter-iks) fue uno de los pterosaurios más grandes que han vivido; tenía cerca del tamaño de un avión pequeño. Yo soy Hatzegopteryx es el segundo libro de Arbordale Publishing de la serie Yo soy Prehistórico, el cual le otorga a los niños un vistazo de la vida del grandioso Hatzegopteryx, desde que era una pequeña cría hasta convertirse en un asombroso depredador alado, además de cómo hacía su vida. A diferencia de muchos pterosaurios, este era un carnívoro terrestre, el cual pasaba su tiempo cazando presas sobre tierra. Al igual que los animales del presente, las criaturas prehistóricas tenían adaptaciones y comportamientos que les ayudaban a sobrevivir en su hábitat—un ambiente que era de varias formas bastante diferente a lo que vemos a nuestro alrededor actualmente.
Translated in Spanish, this exciting e-book shows readers how important volume is to flying a hot air balloon properly. Explore the history of the hot air balloon and learn how these eye-catching balloons fly! For hot air balloons to fly properly, passengers have to calculate the volume of the basket to see which balloon will be able to carry them. With vibrant images, easy-to-read informational text, clear mathematical diagrams, and text features such as a glossary and index, this Spanish-translated e-book will engage readers while simplifying important mathematical formulas and STEM themes.
Explore shipwrecks to learn about underwater archaeology and mapping coordinates! This Spanish-translated e-book encourages readers to familiarize themselves with coordinate planes by finding intersections between lines of latitude and longitude. Using geometry, STEM concepts, and an understanding of coordinate planes, readers can follow along as marine archaeologists find and explore shipwrecks! This exciting digital resource uses vivid images, easy-to-read informational text, engaging practice problems, clear mathematical charts and diagrams, and text features such as a glossary and index to make mathematics feel simple and fun. Math can be so adventurous!
Si una momia pudiera hablar, ¿qué diría? Claro, las momias no pueden hablar. Pero con las herramientas científicas actuales podemos descubrir lo que tienen que decirnos. Lee las historias de los faraones y sacerdotisas egipcias que fueron momificados, elefantes bebés, mascotas mimadas e incluso un bisonte prehistórico. Sigue las pistas de asesinatos y sacrificios humanos que ocurrieron hace siglos, ¡e incluso descubre qué fue lo último que comió una persona o animal! Científicos reales nos explican cómo sabemos lo que sabemos de las momias. Entonces, ¿qué tienen que decirnos las momias? De hecho, ¡muchísimo!
Como parte de la ciencia única, la serie Know-It-Alls! Cuenta con impresionantes portadas y texto atractivo, ¡este libro pone el enfoque en los Dinosaurios! ¿Sabías que el Tiranosaurio era el dinosaurio come carne más feroz? No era el más grande, pero era enorme – 7 toneladas (6.5 toneladas métricas) de monstruosidad. Con más de 40 pies (12 m) de largo, fue un asesino inteligente con una visión aguda. Aprende todo sobre estas criaturas prehistóricas y los paleontólogos que los estudian. Las ilustraciones increíbles realísticas y las cajas informativas de estadística, llenas con datos interesantes, hacen este libro de 24 páginas divertido y emocionantes para los jóvenes entusiastas de la ciencia de edades 4 para arriba!
After Texas earned its freedom from Mexico through a bloody revolution, its leaders were divided over whether Texas should join the United States. Through numerous captivating facts, vivid images, and easy-to-read text, readers will be enthralled as they make their way through this fascinating title that introduces them to Texas history, the Texas Revolution, and the Mexican-American War. The engaging sidebars, glossary, index, and table of contents make this book easy to navigate through and a perfect tool to aid in better understanding of the content and vocabulary.
After Texas joined the United States in 1845, Texas began to form its own identity. This new identity centered on the rise of the Texas cattle industry and the growing legend of the Texas cowboy. Readers will discover what cowboy life was like in the early days of Texas history as they make their way through this exciting book! Readers will learn about Texas cowboys, cattle trade, antebellum, the Battle of Fort Sumter, and more through vivid images, easy-to-read text, and numerous intriguing and engaging facts. A glossary, table of contents, and index is provided to aid in better understanding of the content and development of vocabulary.
Texas has changed dramatically since it joined the United States in 1845. It has become a national leader in resources and many industries--it serves as a major supplier of the nation's oil, cattle, and agriculture. This inviting nonfiction book will intrigue readers as they learn about major Texas industries through colorful images and captivating facts. Children will learn about NASA, various types of music found in Texas, and even about the most popular Texas sports! The supportive text and accessible glossary and index aid in better understanding of the content and vocabulary.
During the 20th century, Texas grew from a land of farms and ranches to a state filled with large cities and industries. This fascinating title is a great introduction to Texas history, Texas social life and customs, and Texas economic conditions throughout the 20th century. The intriguing facts and vivid images work in conjunction with the supportive text and accommodating glossary and index to give children an opportunity to enhance their vocabulary and literacy skills while learning about the exciting history of Texas!
In 1833, American and Tejano colonists wanted independence from the Mexican government. Through a bloody Texas Revolution, the independent Republic of Texas was born! Readers will be enthralled as they make their way through this exciting and compelling book that uses vivid images, intriguing facts and sidebars in conjunction with easy-to-read text and an accessible glossary and index to enlighten readers about such things as the Law of April 6, 1830, the Battle of Gonzalez, Siege of Bexar, "The Consultation", and The Alamo. Along with these highlights of the Texas Revolution, this book also includes features on Santa Anna, Stephen Austin, and Sam Houston to give children a well-rounded introduction to Texas history.
By the 1800s, Mexican and American settlers were starting colonies throughout Texas. After Mexico won its independence from Spain, the real fight for Texas began. Through supportive text, vivid images, a helpful glossary, index, table of contents, and engaging sidebars and facts, readers will learn about Texas history, Texas colonization, the missions in Texas, Stephen F. Austin, and The Alamo.
In the 1500s, European explorers arrived in Texas in search of gold and glory. The Spanish were the first Europeans to arrive. Readers get to discover early Texas history in this fascinating nonfiction book that uses colorful images, intriguing facts, supportive text, and an accommodating glossary, index, and table of contents to introduce readers to various explorers such as Christopher Colombus, Cabeza de Vaca, Francisco Vazquez de Coronado, and La Salle. Children will be excited and engaged as they read through to also learn about the many American Indian tribes of the past. From the Caddo to the Apache, the Comanche to the Karankawa, readers will be captivated from beginning to end!
In the middle of the 1830s, Texans fought against the Mexican government for its independence. During the Texas Revolution, many leaders emerged, such as Sam Houston, Lorenzo de Zavala, William Travis, Francita Alavez, Sidney Sherman, Susanna Dickinson, James Bowie, and Juan Seguin. This captivating biography allows readers to learn about the incredible accomplishments of these people and what they did to make an impact on the Texas Revolution.
Groups of American Indians had been living in the Texas region for thousands of years when American settlers decided to expand westward. This captivating book explores the Texas history and the history of American Indians and how each group found different ways to live on the region they inhabited. Readers will learn about a variety of tribes, including Karankawa tribe, Jumano, Caddo, Lipan Apache, and Shosone and discover how they struggled to survive European colonization, the Indian Removal Act, and American expansion. Other topics include the Dawes Act, Indian Civil Rights Act, and peace treaties. Through plenty of interesting and intriguing facts, engaging sidebars, accommodating glossary and index, and supportive text, readers will be encouraged to learn and explore the history of the Indians of North America.
The Caddo and Comanche were two of the largest American Indian groups living in Texas before European contact. This nonfiction title explores the history of the Caddo and Comanche, how they adapted to European colonists and American settlers, and the impact they made on Texas history. The Hasinai, Kadohadacho, Natchitoches, Comanche Nation of Oklahoma, and Shoshone are some of the tribes that readers will discover through engaging sidebars and facts, intriguing images, easy-to-read text, and a supportive glossary, index, and table of contents.
A North American Spanish translation of this updated book for elementary readers presents information about the history and rules of basketball at the Olympics. Includes a table of contents, Q&A feature, glossary, books and websites, and index.
A North American Spanish translation of thisupdated book for elementary readers presents information about the rules and types of combat sports featured at the Olympics,including wrestling, boxing, tae kwon do, judo, fencing, and karate. Includes a table of contents, Q&A feature, glossary, books and websites, and index.
Learn all about Apatosaurus through carefully leveled text and easy-to-read infographics.
