Viajes a caballo

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

This book teaches readers about how the moon reflects the sun's light, and why the moon seems to change shape throughout the month. The book is complete with labeled images when needed, simple text, and more facts. Aligned to Common Core Standards and correlated to state standards. Abdo Kids Jumbo is an imprint of Abdo Kids, a division of ABDO. Translated by native Spanish speakers--and immersion school educators.

In an online world where the amount of information seems to increase exponentially even week to week, student researchers can find it an ever-greater challenge to distinguish credible, vetted content from hearsay and misinformation. This book on citing internet sources will help them determine which online sources are trustworthy and which are not. Its lively and engaging instructional tips will help readers successfully negotiate the vast landscape of information out there. They will produce quality research for papers now and beyond in their academic careers with skill and confidence.

A journey into the ocean’s depths to learn about these fascinating animals: their habitat, how they breathe and swim, and how pollution and trade affect their existence. En esta obra se describe acerca de la vida de las ballenas y delfines: De que tamano son, como son y los lugares que habitan. Los alimentos que consumen, si poseen dientes y su el tamano. A la que familia pertenecen. Sobre su respiración y formas de nadar. Sobre los bebes de las ballenas y delfines. Los lugares que recorren durante el invierno y verano.ó Los sonidos que emiten las ballenas y delfines, sus acrobacias,...