Chapter 1
The moving puzzle of tectonic plates
Chapter 2
Inside the fiery chambers of volcanoes
Chapter 3
When the earth shakes and rolls
Chapter 4
Living with a restless planet
Ch 1 · The moving puzzle of tectonic plates
artiteacher Tectonic Plates
The Ring of Fire, (Oh-oh!) / Plates are always on the go! (Yeah!) / Volcanoes and quakes, you know!
BETA
artiteacher Drag tectonic plates to discover how volcanoes and earthquakes form.
artiteacher Divergent boundaries are places where plates pull away from each other, allowing molten rock to rise and create new crust.
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.
artiteacher Convergent boundaries occur where plates collide, forcing land upward into massive mountain ranges or down into deep ocean trenches.
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?