El Asesinato de Abraham Lincoln

Looks at the life of Betsy Ross from her Quaker childhood to her days as an independent businesswoman. Also examines the legend of the Betsy Ross flag. Written in graphic-novel format.

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...

Este libro de lectura guiado de Nivel Uno examina las actividades de las abejas en verano. Los alumnos desarrollan su capacidad de lectura y reconocimiento de palabras mientras aprenden sobre las flores que florecen, el néctar, la miel y la polinización. This Level One guided reader examines the activities of bees in summer. Students will develop word recognition and reading skills while learning about blossoming flowers, nectar, honey, and pollination.

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

¿Tienes que quitarte los zapatos en la entrada?. Descubre por qué los buenos modales hacen que la visita a casa de un amigo resulte estupenda para todo el mundo.