検索キーワード： 科学・テクノロジー

Over the canyon, the sun scalds the air and bakes the desert mud to stone. But under the shade of the canyon hides another world, where bighorn sheep bound from rock to rock on the hillside, roadrunners make their nests in sturdy cacti, and banded geckos tuck themselves into the shelter of the sand. Discover the wonders concealed in the curves of the canyon and all the secret life hidden in its arms.

When winter ice covers the Arctic Ocean, a narwhal pokes his head through a patch of open water, his tusk—a six-foot long tooth—pointed to the sky. Join this mammal as he jousts with another narwhal, floats with his pod, and uses echolocation to find his prey. When warmer weather arrives, he will migrate towards summer ground. But he must be careful! Predators—orcas and polar bears—will be hungry and looking for a meal.... How will the narwhal escape? Will he be able to return to the winter bay?

¿Cómo funciona el airbag? ¿Por qué lloramos cuando cortamos cebollas? ¿Qué tienen de especial las telas deportivas? Acompaña a Silvana y Marina en su "día a pura química" y descubre esta disciplina apasionante. "Destacado" por la Asociación de Literatura Infantil y Juvenil de la...

Peter was born on the east side of Germany, the side that wasn't free. He watches news programs rather than cartoons, and wears scratchy uniforms instead of blue jeans. His family endures long lines and early curfews. But Peter knows it won't always be this way. Peter and his family have a secret. Late at night in their attic, they are piecing together a hot-air balloon—and a plan. Can Peter and his family fly their way to freedom?

This book introduces young listeners to the orcas humans first fell in love with. The members of J pod live in the Salish Sea, off the coast of Washington and British Columbia. Moby Doll was the first orca ever displayed in captivity, Granny was the oldest orca known to humanity, and Scarlet was the orca humans fought to save.

Young listeners are introduced to environmental issues in their own neighborhoods in this nonfiction book.

Have you ever ridden a roller coaster? They’re a lot of fun, but a lot of physics is involved in making those rides work. The momentum built up by energy and speed keep those trains on their tracks and riders in their seats, even when they’re upside-down!

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.

Este libro tiene como objetivo la divulgación científica de forma comprensible para cualquier persona, independientemente de su formación previa. Está especialmente pensado para niños y jóvenes de edades comprendidas entre los 10 y 16 años y recoge un amplio espectro de temas de interés...

Have you ever wondered how the Hoover Dam was built? Follow along as the Colorado River itself tells you its story! A lot of work went into the construction of this giant dam, but it was worth it—we now have Lake Mead and a way of converting the river’s energy into electricity!

Did you know that Hawaii is still being built, even today? Heidi learns all about how Kilauea, the most active volcano in the world, erupts and spills more lava every day, making the island grow! She also gets to visit Mauna Loa, the biggest mountain in the world. What do you think it might be like to visit?

Many things look very different seen up close. To us, the sun is a giant ball of light in the sky, but to other solar systems, it might look like just another star! Those tiny lights you see in the night sky are what our sun might look like from another planet far out in space. The sun gives light and energy to our entire solar system, and is necessary for many other things. Can you name them all?

Flowers may look pretty, but some can be downright deadly! In England, you can explore the Poison Garden—a place where flowers are known for their beauty on the outside and poison on the inside! In this story, you'll be able to learn about and see these flowers safely without interacting with them.

Inside every seed waits a tiny plant, ready to grow. Watch the process of a pumpkin plant from tiny seed to full-size fruit! You'll also see other plant seeds, which come in many different sizes, shapes, and colors. Some can be as big as your head, but poppy seeds are so little you can hold hundreds in one hand!

Have you ever wondered how war machines were created? Or the origin of beauty salons? Or maybe even how rubber is used in tires, and rubber shoes? Learn more about these renowned inventors and how their inventions helped shape modern life into the way we know it now!

Have you ever gotten bored when the weather is too bad to go outside for recess? Bored students and bad weather inspired James Naismith to invent the game of basketball in the late 19th century. Using a soccer ball and peach baskets, Professor Naismith worked out the rules of the new sport at the local YMCA.

See how the science of physics is utilized not only in the kitchen, but also around the house on a daily basis. Simple machines are everywhere! From brooms and rolling pins to lightbulbs and window blinds, basic everyday kitchen items transform into scientific concepts such as screws, levers, ramps, and wedges!

Why does a baseball travel much faster when hit with a bat than if pitched? Learn how force is applied in this fun experiment! Using a marker, a ruler, and a can, you can perform your own lever experiments. You'll understand the power of weight, such as how a balance beam operates, but on a smaller scale, while learning about the science behind balance.

A bicycle is a fun and efficient way to get from one place to another. But have you ever wondered what parts make up a bike? Some bikes have hand lever brakes while others do not. Riders with more experience usually set their seats a bit higher than those with less experience.

What comes to mind with you think of fungi? Is it mushrooms, or perhaps mildew? Mold and yeast are fungi, too! Learn all about how fungi reproduce with spores, and how their bodies are made up of mycelium!