On September 17, 1787, a handful of Americans signed a historic document that helped organize a structured government for the United States and recognized the rights of its citizens. This national holiday celebrates the most important document in the history of the United States - its Constitution. This exciting book will educate children on a crucial turning point in American history.
Claws that slash, teeth that tear, and tail clubs that crush--dinosaurs were once the terror of the planet! Check out the dramatic illustrations of dinosaurs and the "weapons" on these ancient giants! Their weapons were adaptations that helped them hunt and defend themselves. A great high-interest read and a useful resource for report writing.
Meat eaters, plant eaters…stomp through a world of the scariest, largest creatures that walked prehistoric Earth. Learn how paleontologists--dinosaur detectives--uncover the important clues that have revealed what we know about these terrifying animals. Amazing photos and simple text make this book a great high-interest read.
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!
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!
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.
Learn all about Velociraptor through carefully leveled text and easy-to-read infographics.
Learn all about Tyrannosaurus Rex through carefully leveled text and easy-to-read infographics.
Learn all about Pterodactylus through carefully leveled text and easy-to-read infographics.
Learn all about Stegosaurus through carefully leveled text and easy-to-read infographics.
A North American Spanish translation of thisupdated book for elementary readers presents information about the history and rules of volleyball at the Olympics, including indoor and beach volleyball. Includes a table of contents, Q&A feature, glossary, books and websites, and index.
A North American Spanish translation of this updated book for elementary readers presents information about the track and field events featured at the Olympics, including running, jumping, and throwing events. 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 swimming and diving events featured at the Olympics, including swimming races, diving, and artistic swimming (formerly synchronized swimming). 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 history and rules of gymnastics featured at the Olympics, including artistic, rhythmic, and trampoline. Includes a table of contents, Q&A feature, glossary, books and websites, and index.
The Mi Mini Biografia series are Spanish language biographies for the earliest readers. This book examines the life of Harriet Tubman in a simple, age-appropriate way that will help children develop word recognition and reading skills. Includes a timeline and other informative backmatter.
The Mi Mini Biografia series are Spanish language biographies for the earliest readers. This book examines the life of Davy Crockett in a simple, age-appropriate way that will help children develop word recognition and reading skills. Includes a timeline and other informative backmatter.
The Mi Mini Biografia series are Spanish language biographies for the earliest readers. This book examines the life of Benjamin Franklin in a simple, age-appropriate way that will help children develop word recognition and reading skills. Includes a timeline and other informative backmatter.
