Grades 3-5

The Movement of Ice Sheets

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The Movement of Ice Sheets

More than any other, the West Antarctic Ice Sheet has the greatest potential to raise sea levels all over the world. Learn how scientists are studying it, both in the field and back in the lab.

Studying Ice Flows for Clues to Climate Change

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Studying Ice Flows for Clues to Climate Change

What's better than watching ice melt? Building a computer model to simulate the melting! Ice flow plays an important role in everything from deep ocean circulation patterns to global warming.

Face to Fossil

Face to Fossil

Join the inquisitive Deena Soris as she interviews the fossil of a Protoceratops. This dashing dino, dug up in Mongolia in the 1920s, offers insight into his former life—and the secrets he's still keeping. 

Going Gobi

Going Gobi

Who would travel halfway around the world to spend the summer in a desert where brutal sandstorms and surprise flash floods are on the itinerary? Meet Mike and Mark, who've made the trek annually since 1990. 

Meet the PaleontOLogists

Meet the PaleontOLogists

If you dig dinosaurs, then you need to meet these OLogists. Find out what cool stuff Anna, Max, Reva, and Mark have uncovered while following their curiosity. 

Dress Up a Horse

Dress Up a Horse

Throughout time, people have dressed horses in different ways—sometimes for practical reasons, other times to reflect status or wealth. Explore the styles of horse dress from six world cultures.

Plant Morphology

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Plant Morphology

From leaf margin and arrangement to the parts of a flower and a corn seedling, take an illustrated look at plant morphology with this collection of guides.

Meet the OLogist: Sandra Olsen

Meet the OLogist: Sandra Olsen

Do you dream of a career studying horses? If so, you'll want to meet Sandra Olsen, a zooarchaeologist who has been learning about how humans domesticated wild horses.

Beautiful Breeds

Beautiful Breeds

Did you know that there are more than 200 breeds of horses living today? Explore amazing facts about horse breeds. Find out about their colors, body types, the different jobs they do, and where in the world they come from.

Meteorology in the Poles

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Meteorology in the Poles

It takes only about a month for any change in Antarctica's weather to be felt in North America—pretty remarkable when you consider that Antarctica is 12,874 kilometers (8,000 miles) away.

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Antarctic Weather Reports

The weather station names paint quite a picture of Antarctica—Penguin Point, Ski-Hi, and Windless Bight. Which one would you guess had the lowest temperature? And what month was it recorded in?

Beyond T. rex

Beyond T. rex

Only a small fraction of the 400-plus known species of extinct dinosaurs have appeared on TV and movie screens. Meet some of the more unusual members of T. rex and Velociraptor's family tree.

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