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120 Results for "rock"

"rock" Stuff:

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These rocks provide the most clues about the history of life on Earth. 
OLogy Card
Igneous rocks form when magma, or melted rock from inside the Earth, cools and hardens. They can form above ground wh...
OLogy Card
Deep inside the Earth, intense heat and pressure can change rocks into entirely new metamorphic rocks.
OLogy Card
Granite is an igneous rock, which means it formed from magma, or melted rock. It forms deep inside the Earth under a...
Hands-on

Every rock has a story to tell. Learn how to create a collection that rocks!
Reading

Meet six rocks that travelled to the Museum from places like Mexico, Scotland, and even outer space.
OLogy Card
Deformed conglomerate is a metamorphic rock that has been changed by heat and pressure.
Reading

Take a peek at our planet's layers, learn what secrets rocks reveal, and gain a long view of history.
Reading

Find out how he became a geologist and what you can learn from studying rocks.
OLogy Card
Obsidian doesn't look like your typical rock. In fact, it looks more like dark glass than a rock you'd pick up in you...
OLogy Card
Limestone is made up of fossils. After small marine animals die, their shells and skeletons build up on the ocean floor.
OLogy Card
Did you ever see a "shooting star"? What you really saw was a meteor burning up in the Earth's atmosphere.
Reading

Visit a scientist's lab to see how he creates a magma chamber!
OLogy Card
Asteroids are space rocks that have existed since the formation of the planets over 4.6 billion years ago. Scientists...
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Like many kids interested in science, Ro Kinzler thought she wanted to be a marine biologist. But later on, she reali...
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Ed Mathez has always been fascinated by rocks and the Earth. As a young boy, he went with his mother to old rock quar...
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Jade is a special and rare rock. For thousands of years, people around the world have been using this durable and bea...
OLogy Card
Sandstone is made of tiny pieces of sand you can see and feel. You can actually scratch away grains of sand from a pi...
Video

Find out how five different environments produce Earth's amazing minerals!
Hands-on

Create your own crystals with sugar. Then enjoy your tasty treat!
OLogy Card
Jim is fascinated with volcanoes. He wants to know why some volcanoes erupt explosively, and how he might be able to...
OLogy Card
Comets are like "dirty snowballs" that have orbited the Sun since our Solar System formed, billions of year...
Game

How do your fossil-sorting skills stack up? Put them to the test with this kid-friendly online puzzle.
OLogy Card
Pathfinder landed on Mars' surface carrying thesix-wheeled Sojourner rover, a mobile robot. Rover and lander took ov...
Game

Test your knowledge about our planet Earth with this quiz.
Hands-on

Anyone can find fossils. This handy guide tells you where to look and what to do.
OLogy Card
George Harlow travels the world over to study how jade, rubies, and diamonds form. George wants to find out what thes...
Game

Do you have what it takes to drive a robot on Mars?
OLogy Card
The plates that make up the Earth's crust are always moving. When two plates meet, the motion causes lots of pressure...
OLogy Card
Saturn is known for the beautiful rings that form a giant hula hoop around it. The rings are made of chunks of ice an...
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The oddest thing about Uranus is that the planet, its rings, and its moons "roll" around the Sun on an axis...
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The Viking mission was the first to explore Mars' surface. Two spacecraft, Viking 1 and 2, each with an orbiter and a...
Reading + Video

Earthquakes are happening all the time. Find out what makes the earth shake.
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Guatemala is located in Central America. It sits south of Mexico and northwest of El Salvador and Honduras.
Reading

Explore the layers of our planet: the crust, mantle, and core.
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It's fitting that the largest planet in our solar system is named after Jupiter, the supreme king of all Roman gods....
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The National Aeronautics and Space Administration (NASA) runs the space program, but that's just part of what they do.
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When "ologists" observe plants, animals, fossils, or rocks, they know they won't remember every detail. So...
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Early civilizations offered it to appease their gods. Ancient Egyptians placed it in tombs to support the dead on the...
OLogy Card
The Earth is our home. So far, it's the only place that we know of that has life. Everywhere you look on Earth there...
Game

Mundo Shamundo! Can you help Mandy study for her geology test?
OLogy Card
In 1997, Dolly rocked the world of genetics. Not baaaa'd for a little lamb from Scotland. What was the big deal? She...
OLogy Card
Some volcanoes erupt explosively, like opening a shaken soda bottle, because their magma is full of gases.
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The Earth is always changing. Mountains form and erode away. Volcanoes erupt and grow larger. Earthquakes shift the l...
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If you look at a map, the coasts of South America and Africa seem to fit together like puzzle pieces.
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From waves to waterfalls, water is usually on the move. And that means it has energy. When this energy is captured an...
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Miles below your feet, scorching temperatures can get hot enough to melt rock. In some places, water heated deep unde...
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As a kid, John Flynn had a rock collection and made lots of trips with his family and school to the American Museum o...
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If there's life on any other planet in our solar system, it's probably on Mars. Scientists have sent orbiters, lander...
OLogy Card
In satellite images of Earth's atmosphere, it's easy to spot the large, spiraling clouds of hurricane. These powerful...
Reading

Take a peek into a mineralogist's scrapbook to see why he thinks jade is so special.
Video

Do you dig the Earth? If so, you'll want to meet Ed.
Hands-on

Kids took the OLogy Challenge and shared their work with us!
Video + Game

Take a look at some stories that were told along the Silk Road.
OLogy Card
If you ever find a pseudoscorpion in your bathtub, don't worry! These tiny arachnids are harmless to humans.
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The name Jurassic conjures images of tremendous dinosaurs roaming the Earth.
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Many famous dinosaurs, such as T. rex and Triceratops, first appeared in the Cretaceous Period.
Reading

What is it like to hunt for dinosaur fossils? And what discoveries are made back in the lab?
OLogy Card
Carefully removing the fossils without damaging them takes talent, special tools, and lots of patience. 
OLogy Card
Mars is often called the "red planet." It's red because its surface is covered with rusted particles of iron.
Reading

What faraway places might humans travel to someday, and how will we get there?
Hands-on

Send a note to a friend with these earthy letterheads.
OLogy Card
Imagine you are an Arabian incense trader in 100 B.C. Arriving in Petra, you enter through the Siq—a long, winding go...
OLogy Card
As an Eagle Scout, David Hurst Thomas was always on the lookout for ancient Indian camps. He never found one as a kid...
Reading + Game

Find out what we know about Mars in this online tour of Earth's closest neighbor.
Hands-on

Make a model of Earth's layers that's good enough to eat!
Reading

Find out what causes volcanoes to erupt and how scientists study them.
Reading

Water is a precious resource, and all things need water to survive.
Reading

OLogy learning: Find resources for K-5 grade levels.
OLogy Card
A bike, a tree, a cloud, an ocean -- any object you can name -- it's all made of matter. Even YOU are made of matter....
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Most ocean plants and animals live near the shore, on a narrow ribbon of seafloor called the continental shelf.
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The seafloor covers more than half of the Earth's surface. Most of the seafloor consists of the flat, expansive abyss...
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The deep sea is not an easy place to explore. To observe the ocean below 2,000 meters (or 6,562 feet), scientists mus...
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About 80 million years ago in the Gobi Desert, sixteen dinosaurs hatched in this nest. One of the hatchlings died bef...
OLogy Card
On July 5, 1997, the six-wheeled robotic rover, Sojourner, rolled down a ramp from the Pathfinder spacecraft onto the...
Reading

Learn about fossils, extremely rare—and valuable—records of the past. 
OLogy Card
Ross MacPhee has always loved dirt. It means the opportunity to find lost things--from bones and teeth to pirate trea...
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Most amphibians start their lives in water, and grow up to live on land. But axolotls live their whole lives in water...
OLogy Card
Fossils are the key to understanding life in the past.
Video

Conservation biologist Ana Luz Porzecanski answers kids' questions.
¡TAMBIÉN EN ESPAÑOL!
OLogy Card
When he was 8 years old, Theodore Roosevelt found a seal skull. It would be the first specimen in his very own natura...
Video

In these videos, a biologist introduces us to the microbes that live all around us.
Game

How can the influenza virus travel around the world? Find out in this quizzy story!
Hands-on

Bury chicken bones in plaster of Paris to see the challenges paleontologists face when excavating fossils.
Reading

Two thousand years ago, an ancient city called Petra thrived deep in the desert of Nabataean kingdom.
OLogy Card
Since he was a boy, Vladimir Ovtsharenko has been fascinated by nature. Growing up, he loved collecting spiders, beet...
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In the 1940s, paleontologists from the American Museum of Natural History discovered rich fossil beds in the high des...
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Earth was a very different place at the beginning of the Triassic. All of Earth's continents were combined into one s...
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One look at Redondasaurus, and you might think it's a crocodile. After all, it has a similar long, armored body, with...
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Sterling was always fascinated by nature, ancient history, and archaeology. Since he was 15 years old, he has spent e...
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There is nothing in the world like water. Without it, our world would be a very different place. Water covers over tw...
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Take a deep breath and exhale slowly. Your body just released carbon dioxide, a colorless gas that's essential to lif...
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Pluto was discovered in 1930 and considered to be the ninth planet in our solar system.
Reading

What golden award is this? Take a guess!
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Scientists are developing and improving "clean" energy sources. But for the next hundred years, the world w...
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Mummies are preserved remains of humans and other animals, some lasting for thousands of years.
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More than four thousand islands—including one big island—make up this nation in the Caribbean Sea.
OLogy Card
When she was a kid, Ana explored the landscapes of rural Uruguay and Brazil and the many plants and animals that live...
Hands-on

Make a 3D diorama! All you need are pasta, Play-Doh, pipe cleaners, pom-poms, and hair curlers.
Video

Archaelogist David Hurst Thomas answers kids' questions.
Hands-on

Get some mud and a few other ingredients to build an entire ecosystem for bacteria. 
Reading

Paleontologist Mark Norell answers kids’ questions.
Video

Why does this scientist love studying tiny living things called microbes?
OLogy Card
Located in the heart of the Middle East, this small desert nation is home to some of the world's oldest archaeologica...
OLogy Card
Of all the dinosaurs to roam the Earth, the largest ones belonged to a group called sauropods- huge plant-eating dino...
Video

Find out why Alice in Wonderland is Mandë's favorite poison story.
Video

Ancient trash or ancient treasure? This archaeologist tells us which he prefers.
Video

Herpetologist Chris Raxworthy answers kids' questions.
Hands-on

Learn how to create a scientific illustration of a monarch butterfly in a few easy steps!
Reading

In this interview, meet the cast of a titanosaur, one of the largest dinosaurs ever found!
OLogy Card
The hellbender is one of the largest salamanders in North America.
OLogy Card
Think of giant kelp as the Godzilla of the seaweeds.
OLogy Card
Not all spiders spin webs to catch their meals. When night falls in Australia, the white-tailed spider hunts its prey...
Video

Find out how paleontologist John Flynn answered kids' questions.
Game + Video

Volcanoes, tsunamis, earthquakes... Examine how plate tectonics affect our world!
Video

What does this marine biologist like most about her work? Find out!
Video

A marine biologist answers kids' questions about how climate change affects life in the ocean.
Video

Paleontologist Mark Norell answers questions about T. rex.
Video

Dive into the oceans with an ichthyologist.
Reading

Find out more about global warming. How, and why, we should slow it?