About This Chapter
Earthquakes & Volcanoes - Chapter Summary
In this chapter on earthquakes and volcanoes, there are a broad range of topics covered, such as the Earth's crust and convergent plate boundaries. You'll also look at how natural events change habitats. After completing the chapter, you should be able to do the following:
- Identify unique properties of the Earth's internal layers
- Discuss the seven major plates of the lithosphere
- Explain the three types of plate boundaries formed based on the theory of plate tectonics
- Detail causes of tectonic plate movement and earthquakes
- Communicate how volcanoes form on land and underwater
- Define the Ring of Fire
- Discuss facts about Mount Pinatubo in the Philippines
These brief and informative lessons include engaging illustrations and plenty of real-world examples. Each lesson includes a short multiple-choice quiz to test your knowledge. The quizzes link back to specific topics in the video, so it's easy to look up that particular topic if you get a question wrong.
1. Earth's Internal Layers: Crust, Mantle & Core
Earth is made up of several different layers, each with unique properties. In this video lesson, you will identify each layer of Earth and how it relates to Earth as a whole.
2. Major Plates of the Lithosphere: Earth's Tectonic Plates
The outer shell of the earth, the lithosphere, is broken up into tectonic plates. The seven major plates are the African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate.
3. Plate Boundaries: Convergent, Divergent, and Transform Boundaries
In the theory of plate tectonics, the earth's crust is broken into plates that move around relative to each other. As a result of this movement, three types of plate boundaries are formed: divergent, convergent, and transform boundaries.
4. Causes of Tectonic Plate Movement
In this lesson, we explore the causes of plate movement, including thermal convection, ridge push and slab pull. Students will learn how these processes complement each other and form a theory for tectonic plate movement.
5. What is an Earthquake? - Definition and Components
Earthquakes are well known for the damage and destruction they leave behind. But what is an earthquake? In this video lesson you will learn about what causes earthquakes and the various components involved in these powerful natural disasters.
6. What is a Volcano? - Definition & Eruptions
Volcanoes are vents that allow lava, rock fragments and gases to escape from layers beneath the earth's surface. Learn how volcanoes form both on land and underwater and why they erupt.
7. What Is the Ring of Fire? - Definition, Facts & Location
The Ring of Fire has produced the world's most destructive and active volcanoes, not to mention most of the world's earthquakes. Read on to find out just what the Ring of Fire is and the volcanoes it has created throughout the planet's history.
8. Mount Pinatubo: Facts, Eruption & Effects
Mount Pinatubo in the Philippines is an active volcano that erupted in 1991. The eruption was one of the largest on record during the 20th century. This lesson will cover the facts about Mount Pinatubo and its eruption.
9. How Natural Events Change Habitats
Natural events, like earthquakes, volcanic eruptions, landslides and floods, can be very powerful and destructive. In this lesson, we will see firsthand how they can change human and wildlife habitats in both damaging and helpful ways.
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