Los fósiles y las rocas

Three Quarters Of Our Earth Is Blanketed By Water. How This Water Is Used, From Bathing To Irrigating Crops Is Addressed. That Water Travels In A Never-Ending Pattern Called The Water Cycle. Tips On How To Conserve Our Most Important Natural Resource Are Included.

Immigrants help make the United States a special place. Learn all about the history of immigration to the United States as you sharpen your data measurement skills! This Spanish math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice problems, sidebars, and math diagrams extend the learning experience and provide multiple...

Un nuevo formato para la serie middle grade de ciencia más divertida. Pachi y su papá científico vuelven con una serie de aventuras que surgen a partir de preguntas raras. ¿Es posible fabricar un gas desde cero?, ¿el agua salada pesa más que el agua dulce? Descubre las respuestas a estas superinterrogantes de la manera más divertida: ¡con experimentos! Y la mejor parte es que puedes convertir tu casa en un laboratorio con cosas que de seguro tienes en la despensa.

Teach young students about the men and women who serve in the armed forces for the United States. This Spanish-translated nonfiction book helps readers understand the importance of our nation's veterans, and how to honor them on Veteran's Day. Primary source documents and images engage readers as they build their literacy skills and social studies content knowledge.

This book looks at natural structures such as plants, animal bodies, mountains, caves, rock formations, and icebergs, the materials from which they are made, and their colors, shapes, and textures. It shows structures made by animals, such as beehives and bird nests. This wonderful book with amazing photos will encourage young readers to notice colors and shapes in nature and how they relate to the purpose of structures.