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Ch 28: Overview of Plate Tectonics

About This Chapter

Review and study plate tectonics at your convenience using this professionally designed chapter. Whether you're finishing an assignment or getting ready for a test, the lessons and self-assessment quizzes provided here make it easy to understand these subjects.

Overview of Plate Tectonics - Chapter Summary

In this interesting chapter, our professional instructors outline plate tectonics for you. Lessons cover related topics such as compiled evidence of this concept, plate boundaries and plates as they're related to earthquakes and tsunamis. Once you complete this chapter, you should be able to:

  • Outline plate tectonics as the unified theory for change on Earth's surface
  • Identify the evidence for plate tectonics
  • Explain how ocean drilling can be used as evidence for plate tectonics
  • Discuss the causes of tectonic plate movement
  • Detail how plate tectonics are affected by density and buoyancy
  • Explore convergent, transform and divergent plate boundaries
  • Describe how plate movement affects volcanic eruptions, tsunamis and earthquakes
  • Identify the factors that determine the impact of an earthquake

You'll find the resources included in this chapter easy to use, mobile-friendly and accessible 24 hours a day. If at any point as you work through the lessons you have questions, feel free to submit them through the Dashboard for one of our instructors to address. We've included helpful self-assessment tools here as well, including lesson quizzes and a comprehensive chapter test.

8 Lessons in Chapter 28: Overview of Plate Tectonics
Test your knowledge with a 30-question chapter practice test
Plate Tectonics: A Unified Theory for Change of the Earth's Surface

1. Plate Tectonics: A Unified Theory for Change of the Earth's Surface

Plate tectonics involve a unifying theory of how the surface of the earth changes. Explore this theory, what causes plates to move, and learn about the term lithosphere, asthenosphere, mantle, and core.

Evidence of Plate Tectonics

2. Evidence of Plate Tectonics

After reading this lesson, you'll learn what things scientists observe in the natural world that lead them to believe that plate tectonics is the way our continents were formed.

Ocean Drilling as Evidence for Plate Tectonics

3. Ocean Drilling as Evidence for Plate Tectonics

One of the ways that scientists study the ocean floor is through deep sea drilling projects, which began in the 1960s. Learn more about the first Deep Sea Drilling Project (DSDP) and how it led to more scientific discoveries about plate tectonics, the Mid-Atlantic Ridge and seafloor spreading.

Causes of Tectonic Plate Movement

4. Causes of Tectonic Plate Movement

Tectonic plates are huge moving pieces of the Earth's crust and there are different mechanisms that can explain the causes of their movement. Learn about the different forces and mechanisms involved in the plate movement process, including thermal convection, ridge push, slab pull, and trench suction.

How Density & Buoyancy Affect Plate Tectonics

5. How Density & Buoyancy Affect Plate Tectonics

Plate tectonics is a field of geology that focuses on the movement and interaction of large sheets of the Earth's crust. Explore the effects of rock density and plate buoyancy on how plates behave, particularly continental and oceanic plates.

Plate Boundaries: Convergent, Divergent, and Transform Boundaries

6. Plate Boundaries: Convergent, Divergent, and Transform Boundaries

The three types of plate boundaries are divergent, convergent, and transform boundaries. Explore these boundaries, the theory of plate tectonics, and how convection currents cause the Earth's plates to move.

How Plate Movement Affects Earthquakes, Tsunamis & Volcanic Eruptions

7. How Plate Movement Affects Earthquakes, Tsunamis & Volcanic Eruptions

The movement of Earth's tectonic plates can trigger dangerous natural disasters. Learn how the moving puzzle pieces of Earth's crust cause earthquakes, tsunamis, and volcanic eruptions.

Factors That Determine the Impact of an Earthquake

8. Factors That Determine the Impact of an Earthquake

The impact of an earthquake is determined by both physical and time-oriented factors. Learn the seven factors that influence the impact of earthquakes: severity, distance, population density, country development, communication, time of day, and time of year.

Chapter Practice Exam
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Practice Final Exam
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