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A Comprehensive Guide to the Layers of the Earth

science.howstuffworks.com/layers-earth.htm

Delve into the Earth's layers: crust, mantle, outer core, and inner core. Discover the secrets beneath our feet and the dynamic processes at play.

Pluto: Is It a Planet After All?

science.howstuffworks.com/pluto-is-it-planet-after-all.htm

Back in 2006, the International Astronomical Union decided to demote Pluto to the status of a dwarf planet. A historical study challenges that designation.

Can You Match These Words to the Right Branch of Science?

play.howstuffworks.com/quiz/can-you-match-these-words-to-the-right-branch-of-science

Being good at science takes a special kind of person. There are so many formulas to remember. If you're more creative, science in practice might be very difficult. However, most people have at least a basic knowledge of science. Think you can get these questions right? Take this quiz to find out!

What Is the Moon Made Of? Kaleidoscopic Map Sheds Light

science.howstuffworks.com/geologic-moon-map.htm

You're not the first person to ask, "What is the moon made of?" Scientists spent decades creating the Unified Geologic Map of the Moon to answer this and more.

What Causes the Tectonic Plates to Move?

science.howstuffworks.com/environmental/earth/geology/plate-tectonics.htm

Discover the origins of the continental drift theory and how scientists explain these geologic phenomena.

Everyone's on the Hunt for the Element Lithium

science.howstuffworks.com/environmental/earth/geology/lithium.htm

The element lithium is one of just three created during the Big Bang and has been used for mental health care for decades. But now it's in higher demand than ever before.

Is Earth the Only Planet With Tectonic Plates?

science.howstuffworks.com/is-earth-only-planet-with-tectonic-plates.htm

Some scientists think plate tectonics could be a prerequisite for life. So do they exist on other planets outside of Earth? HowStuffWorks finds out.

How the Moon Works

science.howstuffworks.com/moon.htm

The moon is the Earth's only natural satellite and the closest celestial object. Learn about the moon and some of the theories about the moon's origin.

How the Mars Rovers Work

science.howstuffworks.com/mars-rover.htm

Of course we want to go to Mars. Until we figure it out though, roving robots with names like Spirit, Opportunity, Sojourner and Curiosity are our best bet for digging up dirt on our nearest planetary neighbor. Want to go along for the ride?

How did the supercontinent Pangaea become seven separate continents?

history.howstuffworks.com/world-history/pangaea-supercontinent.htm

The idea of Pangaea comes from Alfred Wegener's hypothesis that the seven continents were once joined as a supercontinent. Learn more about Pangaea.

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