Chapter 1
The moving puzzle of tectonic plates
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Chapter 2
Inside the fiery chambers of volcanoes
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Chapter 3
When the earth shakes and rolls
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Chapter 4
Living with a restless planet
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YOUR GOAL
Master of Volcanoes and earthquakes
Ch 1 · The moving puzzle of tectonic plates
teacher Tectonic Plates
The Ring of Fire, (Oh-oh!) / Plates are always on the go! (Yeah!) / Volcanoes and quakes, you know!
Fun Fact
Plate movement: Earth's tectonic plates move at roughly the same speed that human fingernails grow, about 3 to 10 centimeters every year.
Glossary
tectonic plate (noun)
A massive, irregularly shaped slab of solid rock that makes up the Earth's lithosphere. In 1912, Alfred Wegener laid the groundwork for this concept by proposing that the continents once drifted.
A massive, irregularly shaped slab of solid rock that makes up the Earth's lithosphere. In 1912, Alfred Wegener laid the groundwork for this concept by proposing that the continents once drifted.
Quiz
What layer of the Earth lies directly beneath the tectonic plates, allowing them to slide?