Resultados para "4" en Ciencia y tecnología

Un interesante recorrido por la historia de la medicina, que recrea la época en la que los médicos eran magos y hechiceros, las operaciones se hacían sin anestesia y en cualquier sitio, los cirujanos no eran médicos sino peluqueros y la gente se moría por enfermedades que hoy son fácilmente curables. La historia contada a través de los descubrimientos y avances científicos que hicieron de la medicina lo que es hoy.

Cuando un niño decide construir una fortaleza en el patio posterior, el abuelo viene a ayudarle. Pero no pueden hacerlo solos - reciben la ayuda de las seis máquinas simples: la palanca, la polea, el plano inclinado, la rueda y eje, el tornillo, y la cuña. Dicha en rima acumulativa, los lectores seguirán el proceso de construcción hasta el final y descubrirán la sorprendente razón por la cuál fue hecha.

¿Cómo se siente frío? ¿Por qué nos enfermamos más en invierno? ¿Cómo se forma la nieve? ¿Cómo sobreviven los animales? Las respuestas a muchas de las preguntas que trae la estación más fría del año, narradas con simplicidad y mucho ritmo. Premios: "The White Ravens", Internationale...

Why do mandrills have blue faces? What makes a parrot's feathers so bright? Learn these answers and more about some of nature’s most colorful creatures in Science Behind the Colors. Each book highlights a specific animal, detailing how and why the animal gets its colors, how and why its colors change, and what purpose the colors serve. This volume includes Poison Frogs, Rainbow Boas, and Sea Slugs.

Many of Earth's animals are in danger of going extinct. But there are things that can be done to help them. In this series, listeners will learn about the threats facing these animals as well as ways that they can be saved. This volume includes Monarch Butterflies, Red Pandas, and Snowy Owls.

A Whale’s World follows a pod of spy-hopping orcas as they explore the ecosystems of the Great Bear Sea while hunting for their next meal. Past rocky shores and through kelp forests, they observe foraging wolves, hungry grizzly bears, curious black bears, graceful fin whales, splashing porpoises, slippery seals and other members of the Pacific coastal food web. The book gives listeners a fun introduction to the many ways that marine and land animals interact with their environments and with each other.

Start with an exciting factual fiction story about an electric car named Ollie who learns to be proud of his differences, and makes new friends along the way! Then listen to it for a nonfiction exploration of real-life electric cars.

Was hat es auf sich mit Sonne, Mond und Sternen? Willi wills wissen und macht sich auf den Weg ins Satellitenkontrollzentrum der ESA. Wie groß ist unser Weltall? Warum leuchten Sterne? Was sind eigentlich Sternschnuppen und gibt es auf der Milchstraße Kakao? Wie wird man eigentlich Astronaut? Willi wills wissen und trifft sich mit Astronaut Rainer. Welche Tests muss man bestehen? Wie wird eine Rakete ins Weltall geschickt? Wie wäscht man sich im Weltall die Haare und wie schmeckt eigentlich Astronautennahrung?

¿Estás listo para el apocalipsis alienígena? ¡Parece que necesitas el código ninja! Michael Carter tiene 12 años. En estos momentos, su hermano de pedos y él se encuentran en el espacio, tratando de salvar al Presidente, y todo va mal. Absolutamente. Todo.

Nature has the ability to turn our world into a disaster zone. From blizzards to volcanoes, this series looks at the science behind the destruction. How is a blizzard different from a snowstorm? What causes hurricanes to form? How do you stay safe in an earthquake? Children can answer these questions and more. This volume includes Tsunamis and Volcanoes.

Listeners have come to expect chatty, direct narratives that develop distinct characters and place those individuals squarely in the context of both their times and their disciplines, and this account of the noted physicist’s life delivers the goods. From her childhood in an oppressed Poland, the daughter of two highly educated individuals, Curie emerges as a driven woman, determined to excel for both her parents’ and her country’s sake - this drive informing everything that followed.

Willi Weitzel ist mit Leib und Seele Reporter für die nach ihm benannten Sendereihen Willi wills wissen. Er stellt die richtigen Fragen, um ein Thema zu erfassen, betrachtet die Dinge auch mal von der anderen Seite und bringt selbst komplizierte Sachverhalte auf den Punkt.

Children will explore monster machines including a bulldozer, tractor, big rig, monster truck and mores. From a bulldozer to a monster truck, this exciting book teaches children all about big, powerful machines!

Kids will learn about the important tools a meteorologist uses to predict the weather in this fun, rhyming audiobook.

There are so many things that a physicist can study. It really depends on what they are interested in the most. Young science enthusiasts will explore many options that a physicist can study with upbeat, fun music and interesting lyrics, in this fact-filled audiobook.

Did you know that water can be in the form of a liquid, solid, or gas? Kids will learn about evaporation and condensation in this fun, fact-filled audiobook, Water Is Like Magic.

Gravity is the force on Earth that keeps things from floating into space. If we drop a dish, it will fall to the ground. If we jump into the air, we will come back down.

This Highlights Listen & Learn! Audio Study, intended for those in grade four, introduces listeners to the importance of caring for your community. Getting Down and Dirty focuses on some of the run-down problem places found in cities, and how communities have joined together to turn these places into beautiful shared spaces. In addition to discussing bettering our communities, this audio study takes a look at some key comprehension skills including identifying an author's purpose, determining cause-and-effect relationships, and building vocabulary.

Los niños exploraran las maquinas monstruo incluyendo la excavadora, el tractor, aparejo grande, camión monstruo y mas. Desde una excavador hasta un camión monstruo, este libro les enseña a los niños sobre grandes, poderos maquinas!

Lions are meat-eating mammals that like to live in groups or families. A lion's family is called a “pride.” Usually there will be many females that live together along with their cubs, but only one male. Lions like to play and hunt together. Because they have a keen sense of hearing and sight, they often will hunt at night. Usually the females do the hunting. They work in groups to catch their prey. The male lion takes his share of the catch before the females and cubs get any food. Lions are known for their loud, ferocious roar.