Chapter 5 - Shaping Earth
From slow creeping continents to ground-splitting quakes, the Earth is constantly changing. Take a peek at our planet's layers, learn what secrets rocks reveal, and gain a long view of history.
How well grounded is your knowledge of our planet? Test your Earth science knowledge with this interactive quiz. Then, examine your faults—and the rights answers.
Want to take a close look at the layers that make up our solid Earth? Cook up a model that's good enough to eat—from the spice drop inner core to the thin chocolate crust.
A volcanic eruption that could be felt across an ocean, an earthquake that sparked landslides, massive tsunamis, and a volcanic eruption ... Examine the world-changing results of plates on the move.
Give your class a tour of the diverse landscape of your own undersea realm!
Do you dig the Earth? If so, you'll want to meet Arjun, Diana, Ruthmabel, and Ed. From volcanoes to deep sea vents, find out where these OLogists' interests have taken them.
Piece together what Earth may have looked like approximately 220 million years ago when there was a single supercontinent, Pangaea.
Countless impacts continue to shape Earth, other planets, and moons in our dynamic solar system. They can make craters of many sizes, which often provide clues to how the meteorites formed. These resources cover a range of topics, including an introduction to gravity and the evidence for life on Mars.
Did you know that Long Island was once part of a chain of volcanoes? Or that it was part of the tropics—and faced south? Step back in time with this seventh-grader for a look at the forces that shaped this giant sandbar.
Did you know that the island of Iceland is really just the peak of an underwater mountain? What other land forms lie hidden beneath the ocean, and how are they formed?