Chapter 5 - Changes over Time main content.

Chapter 5 - Changes over Time




Unit C - Earth and Its Resources

  • Chapter 5 - Changes over Time

What forces have shaped Earth's landscape?

Article What's the Big Idea About Earth? From slow creeping continents to ground-splitting quakes, the Earth is constantly changing. Take a peek at our planet's layer... Interactive What Do You Know About Earth? How well grounded is your knowledge of our planet? Test your Earth science knowledge with this interactive quiz. Then, examin... Educator Materials Edible Earth 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 spic... Article Plates on the Move A volcanic eruption that could be felt across an ocean, an earthquake that sparked landslides, massive tsunamis, and a volcan... Educator Materials Plate Tectonics Puzzle Piece together what Earth may have looked like approximately 220 million years ago when there was a single supercontinent, Pa... Article What's the Big Idea About Paleontology? Learn about fossils, extremely rare—and valuable—records of the past. Article Shaped by Nature and Man: The Geological History of the Palisades This 10th-grader from New York reflects on how the colliding of continental plates and the force of glaciers helped shape the... Educator Materials Solve a Sedimentary Layers Puzzle The history of life on Earth is recorded in the planet's rock layers. Try your hand at reconstructing geologic history with t... Educator Materials Arthur Holmes: Harnessing the Mechanics of Mantle Convection to the Theory of Continental Drift This geologist made not one but two major contributions to our understanding of how the Earth works. Read about his geologic... Educator Materials A Conversation with Jacques Malavieille The mountain-building processes of folding and faulting take many millennia on Earth—and a matter of minutes in the lab. Lear... Educator Materials Harry Hess: One of the Discoverers of Seafloor Spreading While the idea that continents have drifted over time dates back to the 16th century, it wasn't until the 20th century that s... Educator Materials Mapping Mt. Rainier Beneath the glacier-clad summit of Mt. Rainier lies an active volcano, which has more than once produced enough molten rock t...