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How Prairies Work
- Watch this episode of Eco Geeks about prairies on HowStuffWorks. Why do grasses dominate certain ecosystems while trees do not? Learn the answer and more about prairies in this episode of Eco Geeks.
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Why? Tell Me Why! Alaska Oil
(1:30)
After spending a week in Alaska, Discovery News' Kasey-Dee Gardner wanted to find out why the state is so abundant in that resource.
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Violent Storms: Tornadoes
(2:15)
How do tornadoes work? Find out more about tornadoes in this HowStuffWorks video.
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What Are the Odds? Earthquake
(2:53)
What are the odds there will be an earthquake in the next 100 years? Learn more about the probability of earthquakes in this video.
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Mountains of Fire: The Hawaiian Islands
(1:41)
The volcanoes in the Hawaiian Islands are not on a plate boundary, but at a hot spot where magma has found a way through the earth’s crust.
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How Tornadoes Work
(6:30)
Tornadoes are one of the most violent type of storms, with 800 each year in the U.S. Learn more about tornadoes in this video from Discovery.
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Discovery Wonders of Weather: Lightning Phenomena
(5:05)
Lightning will strike anything that stands high above the ground. Trees are a favorite target. Watch a lightening video at HowStuffWorks.
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Planet Earth: Mountains: On the Edge
(2:59)
The largest glacier lies in the Karakoram Mountains in Pakistan.
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Mountain Building: Volcanic Mountains
(5:46)
Volcanic mountains form when magma or lava solidifies into solid rock. This type of mountain commonly forms on divergent boundaries and on some convergent boundaries.
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