検索キーワード： 地球科学

Surviving in the desert heat can be dangerous–from deadly shifting sands to a lack of food and water, learn how animals like the Dromedary camel uses its eyelids to shield it from swirling sand, how Sandgrouse chicks soak up water from feathers on their fathers belly, and how the kangaroo rat never takes a drink!

What do you use your teeth for? Just like us, animals use their teeth for lots of different things in order to survive! Learn how animal teeth differ from humans and how they are special to each kind of animal, depending on what they eat! See all the different kinds of teeth that animals can have all over the world. Who do you think has the scariest teeth?

Ada wants to win a prize one day for her inventions. She has many ideas. When it’s time to clean up her blocks, Ada has a great idea to make clean-up time easier. Ada thinks to use her father’s old socks to invent a way to stay on her two feet on an icy day! Ada’s ideas to recycle old things makes her a great inventor!

Montañas que se elevan hasta el cielo, cuevas que descienden hasta las entrañas, volcanes que cortan la respiración, desiertos insoportables, ríos interminables, poblados donde llueve siempre, salares inmensurables… ¡Más de 25 destinos para quienes deseen viajar hasta "lo más" de...

When volcanoes blow their top, watch out! They can blast out dangerous lava, rocks, ash, and steam that can contain clouds of poisonous gas. But when lava cools, it becomes rock, which in turn creates new land.

Imagine if the sunlight could not reach where you lived–the weather would be cold and slippery! The sun does not shine directly on the Arctic and Antarctica, causing the surrounding waters to freeze solid. The earth is tilted as it rotates around the sun, preventing the polar regions from getting enough sunlight. Can you guess how long it takes the earth to orbit the sun?

Jeff and his cousin Liz are waiting to see the solar eclipse! Together, they learn about why eclipses happen and why seeing one is special. Do you know why eclipses happen? Learn how the moon and sun interact with Earth in order to create this solar spectacular!

Artificial replacement joints have to be tough and extra smooth. That’s why doctors use replacement joints made with the same long-lasting and strong stuff as sapphires and rubies, a natural mineral called alumina. Learn more about why this gemstone is perfect for making new joints!

Follow Detective Dobson as he investigates Earth's greatest "mass murderer" that led to the greatest extinction event in Earth's history nearly 250 million years ago. Dobson will travel the world investigating fossils—the evidence left behind by the killer that was left behind in the Earth’s crust. Who really was the killer? Was it a Volcano, Climate Change, Poisonous Gas? Help Detective Dobson find the real suspect with paleontology and geology! Will Dobson ever be able to truly find the killer?

What animals do you think live in the desert? Follow Click and Jane as they travel through the desert. Not believing anything can live in the hot, dry desert, Click quickly learns that plenty of creatures make their homes in the desert. As the pair is introduced to different birds, plants, reptiles, coyotes, and owls, Click and Jane are able to come to appreciate the desert.

Have you ever wondered what it would be like to stand next to a real dinosaur? Millions of years ago, Dinosaurs ruled the earth and left their fossils behind for us to find all over the world. These fossils help archaeologists and paleontologists learn about what dinosaurs may have looked like. Some were really big and some were really small. In this story, you will learn all of the different shapes & sizes of your favorite dinosaurs before they went extinct. How will you measure up next to your favorite dinosaur?

Have you ever wondered why it gets dark at night? Listen to learn about how the Earth’s spinning changes day into night and why some days are longer than others.

Have you ever visited the Grand Canyon? As one of the world’s seven wonders, millions of people have visited this landmark. Have you ever wondered how it was formed? Learn how the 3 "R"s- Rock, Rivers, & Erosion, have led to the formation of the Grand Canyon and the changes it undergoes in present day.

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?

Have you ever wondered how a river forms, which animals live near rivers, or where those rivers lead? Rivers are a vital part of life and the ecosystem. Rivers help transport water to humans and animals as well. It can also be used to create energy. Water from rivers can end up in many different places downstream!

Follow along with this class as they explore a creek near their school in Pennsylvania! They want to learn about the water and its ecosystem, so they perform a survey to determine its quality and biota. What do you think they will find?

When on land, rivers, lakes, and oceans appear flat. With the aid of satellites, these bodies of water appear to have many designs! Explore the art of nature and how satellites detect the temperature of the many bodies of water around the globe.

Deep underground, unseen forces are at play to move the continents around our globe.

How is lightning created? And what is thunder? What kind of weather creates the most lightning? This science story shows how lightning is like the spark from static electricity, but much bigger.

Not all forest fires are bad. Controlled burns actually help keep the forest healthy, clear the way for new vegetation, and act as a pest control.