Medir la velocidad (Measuring Speed)

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...

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

Finally, a beginning science book that really addresses the needs and interests of the very young child. Since we all eat, we all must poop. It is this basic message that this wonderful book presents in a form that is both humorous and informative.

¡Los doctores saben muchas cosas sobre la salud y el cuerpo humano! Al examinar a los pacientes y recetar medicamentos, los médicos pueden averiguar qué está enfermando a una persona y cómo hacer que se sienta mejor. Ahora en español, este título involucra a los lectores jóvenes para aprender cómo los médicos sirven a su comunidad. Las preguntas de pensamiento crítico apropiadas para la edad y un glosario de fotos ayudan a desarrollar habilidades de aprendizaje de no ficción. Doctors know many things about health and the human body! By examining patients and prescribing medicine,...