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American Museum of Natural History

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25 Results for "plate tectonics"

The Earth is always changing. Mountains form and erode away. Volcanoes erupt and grow larger. Earthquakes shift the l...

Explore the layers of our planet: the crust, mantle, and core.

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

If you marked every active volcano in the world on a map, you'd start to notice a pattern. Most of the world's active...

Most volcanoes form along plate boundaries. But some of the world's largest and most active volcanoes are found far f...

The plates that make up the Earth's crust are always moving. When two plates meet, the motion causes lots of pressure...

If you look at a map, the coasts of South America and Africa seem to fit together like puzzle pieces.

When viewed from above, the wide-open sea is vast and flat. But venture below and you'll find a varied landscape that...

Jade is a special and rare rock. For thousands of years, people around the world have been using this durable and bea...

Deep inside the Earth, intense heat and pressure can change rocks into entirely new metamorphic rocks.

Some volcanoes erupt explosively, like opening a shaken soda bottle, because their magma is full of gases.

Ed Mathez has always been fascinated by rocks and the Earth. As a young boy, he went with his mother to old rock quar...

Test your knowledge about our planet Earth with this quiz.

Deformed conglomerate is a metamorphic rock that has been changed by heat and pressure.

As you can tell from its body plates and tail spikes, this dinosaur is related to Stegosaurus.

This rare lizard lived in the Gobi Desert about 80 million years ago.

Because of the diamond-shaped plates on its back, Stegosaurus was given a name that means "roof lizard."

This primitive armored dinosaur had bony plates and spikes that served almost like armor.

Guatemala is located in Central America. It sits south of Mexico and northwest of El Salvador and Honduras.

Dinoflagellates are tiny, one-celled organisms that live in oceans and freshwater ponds, rivers, and streams. Some di...

One look at Redondasaurus, and you might think it's a crocodile. After all, it has a similar long, armored body, with...

What golden award is this? Take a guess!

The name Jurassic conjures images of tremendous dinosaurs roaming the Earth.

Plankton are the microscopic organisms of the sea. Just as plants form the basis for the ecosystem on land, phytoplan...

Confuciusornis is the earliest-known toothless, beaked bird.