La carta de derechos

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Eco-Friendly Energy Is Explained. The Most Current Information Is Provided While Establishing The Understanding That It Does Not Take Much To Make The World A Better Place.

¿Qué tienen en común una tortuga marina, una iguana y una pitón? ¡Son todos reptiles! Conozca las características que comparten todos los reptiles. What do a sea turtle, an iguana, and a python have in common? They're all reptiles! Learn about the characteristics that all reptiles share.

Aunque los mayas desconocían las aplicaciones de la rueda y no utilizaban los animales ni para el trabajo ni para el transporte, lograron crear una de las civilizaciones más brillantes de la historia. A pesar de que dispusieron de una tecnología muy limitada, colonizaron una parte importante de América Central y construyeron impresionantes monumentos.

This fun book introduces readers to basic geography words. On each page, a child gives clues to the kind of landform they are sitting on. Then they ask the question, Where am I? Young readers learn about mountains, caves, deserts, and other things in our natural world. An activity at the ends asks readers to match photos with their landform names.

This Spanish-translated nonfiction book tells the story of a woman and her family. With easy-to-read text and numerous photographs, students can follow along and will be encouraged to tell a story about their own family. Build reading skills and strengthen social studies knowledge with this engaging book!