About This Chapter
The Sun's Structure, Energy & Life Cycle - Chapter Summary
By watching the videos in this chapter, you'll explore the structure of the sun and its atmosphere. Our instructors take you step-by-step through the stages of the sun's life cycle. The lessons also detail the causes of magnetic solar phenomena, such as solar flares and coronal mass ejections. Once you've studied all the videos, you should be able to do the following:
- Describe the sun's structure and atmosphere
- List features of the photosphere and chromosphere
- Recognize the relationship between the solar corona and solar wind
- Identify forms of magnetic solar phenomena
- Define sunspot
- Explain the Babcock model
- List the sun's life cycle stages
- Discuss how energy moves in the sun
In our videos, instructors use their professional experience to make learning about the sun an entertaining experience. The brief videos, full of simplified concepts and fun graphics, contain tags so you can jump to key points during review time. Each lesson also includes a video transcript and a self-assessment quiz. All of these tools are available when you need them on your computer or mobile device.
1. Structure of the Sun
Discover the layers of the sun, including the core, radiative zone, convective zone, photosphere, chromosphere, and corona. Find out which layers you can see from Earth. Investigate what sunspots and solar flares are.
2. The Sun: Atmosphere & Facts
This lesson will go over what the three layers of our sun's atmosphere are, the sun's surface temperature, chemical composition, radius, and distance from Earth.
3. Photosphere: Definition & Features
This lesson will go over the sun's photosphere (its visible 'surface'), including where light comes from, how hot it is, and what granules and supergranules are.
4. Chromosphere: Definition & Properties
This lesson will explore some of the interesting features of the second layer of the sun's atmosphere, the chromosphere, including spicules and its pinkish hue.
5. The Solar Corona & Solar Wind
This lesson will define the solar corona and go over how it's involved with the formation of the solar wind and why it's hotter than the photosphere despite being the outermost layer of the sun's atmosphere.
6. Solar Flares, Solar Prominences & Coronal Mass Ejections
This lesson will go over three events caused by magnetic interactions in our Sun. They are prominences, flares, and coronal mass ejections. We'll also touch base on how the latter two can affect life on Earth.
7. What Are Sunspots?
This lesson will describe for you what sunspots are, where they appear, what parts they have, and why they're dark. It also discusses what differential rotation and a sunspot cycle are.
8. The Babcock Model of the Sun's Magnetic Cycle
This lesson will cover a model called the Babcock model or Magnetic-Dynamo model, which helps to explain how many of the features of the solar and sunspot cycle occur.
9. Stages of the Sun's Life Cycle
Discover our sun, the provider of energy for life on Earth. Learn how the sun was born, how it lives as a main sequence star, how it will age into a red giant and how it will die as a white dwarf.
10. How Energy Moves Within the Sun
This lesson will describe how energy is carried from the inner reaches of the Sun, through the radiative zone, then the convective zone, and finally into space.
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Other chapters within the AEPA Earth Science (AZ045): Practice & Study Guide course
- Development of Earth & Space Science
- Nature of Scientific Inquiry
- Scientific Data & Calculations
- Maps & Spatial Concepts
- Space Science Technology
- Laboratory Safety & Procedures
- Earth's Formation & Structure
- Plate Tectonics, Continental Drift & Ocean Formations
- Time & Dating in Geology
- Weathering, Erosion & Deposition
- Physical & Chemical Properties of Earth's Minerals
- Rocks & Minerals
- Understanding Earthquakes
- Biogeochemical Cycles
- Earth's Hydrologic Cycle
- Earth's Fresh Water
- Atmospheric Structure & Energy Transfer
- The Ozone Layer, Climate Change & Air Pollution
- Season & Climate Classifications
- Earth's Climate System: Wind, Air Masses & El Nino
- Weather Conditions & Severe Weather Phenomena
- Weather Forecasting and Analysis
- Characteristics of Ocean Water, Currents & Waves
- The Earth & the Moon
- Celestial Orbit Characteristics
- Solar Radiation, Energy & Electromagnetic Waves
- Formation of the Solar System
- Celestial Bodies of the Solar System
- Kepler & Newton's Laws of Motion
- Star Types and Significance
- Characteristics of Stars
- Structure of the Milky Way Galaxy
- The Universe: Key Concepts & Theories
- AEPA Earth Science Flashcards