Discover more about the Sun, Moon, stars, and planets.

Discover more about weather and how scientists track and monitor storms.

Discover more about the Earth's resources and why they are important.

		Kids in the Hall of Planet Earth: Rocks in Your Cabinet Article for grades 3 through 8 Chances are good that there are rocks and minerals in the pots you cook with, the dishes you dine on, and the food you eat. See which ones are hiding out in your kitchen.
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		Online Field Journal: Rocks Activity for grades Kindergarten through 5 Have you ever taken a really good look at rocks? If not, you might be surprised by just how many varieties you can find. Start by comparing these rocks online, and see how many differences you can spot.
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Discover more about pollution and how to protect the Earth's resources.

		Florida's Fragile Reefs: What's Happening to this Underwater World? Article for grades 6 through 12 Investigate reefs in the Florida Keys to see how and why they are dying not just there, but all over the world. Then learn what can be done to save these "rain forests of the sea."
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		Setting Rivers Free Article for grades 6 through 12 More than two million dams block virtually every waterway in America. But how many of these structures have seen their day? Learn what happens when dammed rivers are set free.
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		Video Gallery: Conserving Diversity of Fishes Article for grades 6 through 12 Lake Victoria in Africa was once home to hundreds of unique species of fish. Why is this lake dying right before our eyes? And what would its loss mean to world?
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