Cómo podemos utilizar la palanca?

Define planos inclinados, explica sus funciones, y sugiere experimentos sencillos para demostrar cómo funcionan.

Follows The Thirteenth Amendment That Freed The Slaves, The End Of The War, And The Death Of President Abraham Lincoln.

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

Children learn about the features of Tyrannosaurus Rex, what Tyrannosaurus Rex ate, and how it attacked other dinosaurs.

"Simple text and photographs present motorcycles, their parts, and how riders use them; in both English and Spanish"--Provided by publisher.

A comprehensive guide to the K-pop girl group who are taking the music world by storm. The sassiest, most stylish girls around - BLACKPINK! 'Blackpink in Your Area!' The K-pop girl group are taking their catchphrase literally; they have just finished a sold-out stadium world tour.

Engineers have built some incredible things. But with every new feat, there is failure. Readers will learn about engineering feats and failures like the Titanic, the Hindenburg, the Hoover Dam, and more in this engaging, Spanish-translated nonfiction title. This book features brilliant images, charts, and intriguing facts in conjunction with informational text and mathematics skills to keep readers active and engaged.