About This Chapter
Earth's Spheres and Structure - Chapter Summary and Learning Objectives
This chapter details the complex structure that makes up Earth and introduces some reasons that we study the earth's processes. You can dive right in to an examination of the four major branches that make up earth science and get details on terminology that is commonly used in studies of the earth.
Professional instructors use engaging videos and graphics to teach you about the various processes that shape Earth's surface and how the surface of the earth can change over time. Lessons in this chapter offer an in-depth look at the geosphere, hydrosphere, biosphere and atmosphere of the earth in addition to instruction on the layers that form the earth's interior.
When you've watched all the videos in this chapter, you'll be familiar with these concepts:
- Definition of earth science and common vocabulary terms
- Earthquakes and tsunamis
- Weathering and deposition
- Earth's four spheres
- Crust, mantle and core
|What is Earth Science?||Summarizes the three main branches of science and details the different fields that make up earth science. Explains common science terms and what scientists study in the earth science field.|
|How The Earth is Shaped: Earthquakes, Faults & Tsunamis||Describes how earthquakes and tsunamis shape Earth's surface. Discusses how these powerful processes are used to teach students about the earth's interior.|
|The Changing Earth: Volcanoes, Weathering & Deposition||Details how volcanoes are formed and how they impact the earth. Defines weathering and deposition, and provides a summary of how these processes change the surface of the earth over time.|
|The Four Spheres of Earth: Geosphere, Hydrosphere, Biosphere, and Atmosphere||Defines and lists some characteristics of each of these spheres. Explains the origins of the words that are used to describe each sphere.|
|Interactions of Earth's Spheres: Purpose and Examples||Provides visual examples of how each of the four spheres interact to generate the processes that allow us to live on this planet. Examines how a change in one sphere impacts all the other spheres.|
|Earth's Internal Layers: Crust, Mantle & Core||Details the various components of the layers that form the earth's interior. Illustrates the two parts that make up each of these layers. Defines the lithosphere and its role in the formation of mountain ranges and volcanoes.|
1. What is Earth Science?
Earth science is a field that includes geology, astronomy, meteorology, and oceanography. Scientists do research in these fields to discover past and future events. Learn about the dynamic field of earth science and how it affects our lives in this lesson.
2. How The Earth is Shaped: Earthquakes, Faults & Tsunamis
If you thought that the best way to describe the Earth's surface was round, think again! As this lesson shows, the world is much more like a soccer ball than you might imagine.
3. The Changing Earth: Volcanoes, Weathering & Deposition
While we may not see it every day, the world is always changing. In this lesson, with the help of an ill-informed tour guide, we will see how volcanoes, weathering, and deposition work to continually change the surface of our planet.
4. The Four Spheres of Earth: Geosphere, Hydrosphere, Biosphere, and Atmosphere
Earth is made up of four distinct yet connect spheres. In this video lesson, you will learn about where each sphere is found on Earth, as well as some features commonly found in each.
5. Interactions of Earth's Spheres: Purpose and Examples
The four spheres of Earth drive all of its processes and support life on our unique planet. In this video lesson, you will see examples of how Earth's spheres interact with each other to form an overall complex and connected system.
6. 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.
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Other chapters within the Earth Science: Middle School course
- Understanding Plate Tectonics
- Understanding Earthquakes
- Understanding Volcanoes
- Rock Deformation & Mountain Building
- Shaping the Earth's Surface
- Thermal Energy
- Energy in the Earth System
- Ecology & Ecosystems
- Earth's Energy Resources
- Earth's Material Resources
- Earth Science Investigation & Experimentation