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Why do we dream?
science.howstuffworks.com/life/inside-the-mind/human-brain/why-do-we-dream.htm
Ever wonder why we dream? The human brain can be mysterious, but take a look at what science has to say about why we dream.
Why do small changes in Earth's temperature have a big impact?
science.howstuffworks.com/environmental/green-science/changes-earth-temperature-impact.htm
Though not everyone agrees why the Earth is getting warmer, temperatures are inching up worldwide. A couple of degrees doesn't seem like such a big deal. What difference can a subtle change make?
Why do civilizations collapse?
science.howstuffworks.com/environmental/green-science/civilizations-collapse.htm
The mighty Romans certainly never thought it would happen to them, but the sun eventually sets on even the most powerful empires. Is there more to the story than war?
Earthquake Pictures
science.howstuffworks.com/nature/natural-disasters/earthquake-pictures.htm
These earthquake pictures show building damage, road buckling and fault lines exposed from earthquakes. Click through our gallery of earthquake pictures.
Can Earthquakes Be Predicted?
science.howstuffworks.com/nature/natural-disasters/earthquake-predictable.htm
Are earthquakes predictable, or will we always be surprised when they occur? Learn about predicting earthquakes in this article.
What will Earth look like in 5,000 years?
science.howstuffworks.com/environmental/earth/geology/earth-5000-years.htm
The Earth in 5,000 years would be a very different place because of climate change. Learn about the Earth in 5,000 years.
Will we ever run out of magma?
science.howstuffworks.com/environmental/earth/geophysics/run-out-of-magma.htm
Will we run out of magma, or is there an infinite supply within the Earth's crust? Find out if we will ever run out of magma.
When will life on Earth end?
science.howstuffworks.com/life/evolution/life-on-earth-end.htm
Imagine a time in Earth's far-flung past when organisms didn't swim through the oceans or populate the lands. Even the mighty dinosaurs hadn't arisen. Will the planet ever return to that lifeless state?
What's stronger -- nature or nurture?
science.howstuffworks.com/life/evolution/nature-nurture.htm
Nature or nurture and which is stronger is explained in this article from HowStuffWorks. Find out if nature or nurture is stronger.
Why do we lie?
science.howstuffworks.com/life/evolution/why-do-we-lie.htm
We don't admit to breaking up with someone because of his looks, or that we've read our boss's private e-mails. We answer "fine" when someone asks how we are, even if we're not fine at all. Why is polite society all about the big fib?