Experimentos sencillos sobre el tiempo

"ÅQuâe significa estar enojado? Aunque el enojo no sea agradable, Æes una emociâon que todos sentimos! Los niänos aprenderâan a identificar el momento en que estâan enojados y câomo manejar sus sentimientos. Las fotos grandes y expresivas ayudan a ilustrar câomo se ve el enojo. Se incluye una actividad de reflexiâon que permite a los niänos explorar sus sentimientos"--

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!

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...

A lift-the-flap book showing milestones in a baby's development during pregnancy and the mother's experiences as it grows.