Rocks fall into these three groups: Igneous, Sedimentary, and Metamorphic.
Kids took the OLogy Challenge and shared their work with us!
Every rock has a story to tell. Learn how to create a collection that rocks!
Meet six rocks that travelled to the Museum from places like Mexico, Scotland, and even outer space.
This strong and sturdy rock has a special history. Find out!
Meet a rock that has been through it all: igneous, sedimentary, and metamorphic.
After 200 million years apart, this rock finally reunited with its long-lost cousin.
Meet a rock that's made almost entirely of fossils!
Meet obsidian, an igneous rock that formed from magma.
This rock is as old as Earth itself. What stories does it tell?
Visit a scientist's lab to see how he creates a magma chamber!
Jade is one of the most durable rocks in the world. It's the perfect material for tools!
Did you know that jade is actually a common name for two different rocks?
Create your own crystals with sugar. Then enjoy your tasty treat!
Take a peek at our planet's layers, learn what secrets rocks reveal, and gain a long view of history.
Find out how he became a geologist and what you can learn from studying rocks.
Take a peek into a mineralogist's scrapbook to see why he thinks jade is so special.
Do you have what it takes to drive a robot on Mars?
Do you dig the Earth? If so, you'll want to meet Ed.
There are no "rock" .
Check out other on OLogy!