National Geographic Readers: Los Gatos vs. Los Perros (Cats vs. Dogs)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

What substance can act like both a solid and a liquid? Slime! Want to find out how to make your own? Just follow the simple steps inside this book

Early elementary readers find out what causes earthquakes and what to do to stay safe if one occurs in this helpful, Spanish-translated nonfiction title. Featuring informational text, colorful maps, diagrams, and vibrant photos, this book keeps children engaged and fascinated at the same time! This 6-Pack includes six copies of this title and a lesson plan.

A través de un sencillo paso a paso y de divertidos retos, lo conseguirás en un periquete. Mitch y Scratchy serán tus guías. ¿Todo a punto para esta aventura? Scratch es un lenguaje de programación muy popular y sencillo utilizado por millones de personas en el mundo. Al arrastrar cajas bloques de código de colores se pueden aprender fácilmente los conceptos básicos de la programación y hacer videojuegos y animaciones. Solo necesitas un ordenador y conexión a la red.