Chapter 5 - Changes over Time

earth_science

 

 

Unit C - Earth and Its Resources

  • Chapter 5 - Changes over Time

What forces have shaped Earth's landscape?

What's the Big Idea About Earth?

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 layers, learn what secrets rocks reveal, and gain a long view of history.

What Do You Know About Earth?

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, examine your faults—and the rights answers.

Edible Earth

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 spice drop inner core to the thin chocolate crust.

Plates on the Move

Plates on the Move

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.

Plate Tectonics Puzzle

Classroom Activity

Plate Tectonics Puzzle

Piece together what Earth may have looked like approximately 220 million years ago when there was a single supercontinent, Pangaea.

Yellowstone: Monitoring the Fire Below

Science Bulletin

Yellowstone: Monitoring the Fire Below

Three of the most catastrophic volcanic eruptions in geologic history occurred at a place now visited by nearly four million people a year: Yellowstone National Park. The magma chamber responsible still lies beneath, and continues to steam, heat, and shift the park landscape. Science Bulletins talks with the geologists regularly monitoring these disquieting signals to understand where this active region lies in its volcanic life span.

Solve a Sedimentary Layers Puzzle

Activity

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 this fossil-filled puzzle.

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