Ch 12: The Earth & Sun as a Part of a Galaxy

About This Chapter

Review these engaging science lessons to learn more about the earth, sun and galaxies. You can study these lessons and quizzes to improve your science knowledge, prepare for exams, complete homework assignments and more.

The Earth & Sun as a Part of a Galaxy - Chapter Summary

This collection of fun video lessons examines fundamental concepts pertaining to the solar system, sun and Earth. As you progress through the chapter, you'll learn about the different parts of the sun, our solar system's age and the structure of our galaxy. Studying this chapter can help you:

  • Assess the differences between the universe, galaxies and solar systems
  • Identify the age of our solar system
  • Outline the structure of the Milky Way galaxy
  • Define solar wind, flares and prominences
  • Evaluate the solar corona and coronal mass ejections
  • Acknowledge the effects of solar radiation
  • Summarize the process of nuclear fusion

We've made the chapter accessible on any Internet-connected device to help you study at home, at school or wherever you happen to be. If you need any extra help with the material, feel free to submit questions to our expert science instructors. The chapter also includes lesson quizzes and a comprehensive exam to help you reinforce your understanding of these scientific concepts.

7 Lessons in Chapter 12: The Earth & Sun as a Part of a Galaxy
Test your knowledge with a 30-question chapter practice test
Solar System, Galaxy, & Universe: Definitions & Difference

1. Solar System, Galaxy, & Universe: Definitions & Difference

Want to learn what the universe, galaxy, and solar system are as well as some cool facts about each one? This lesson will give you an overview of what these three things are in a relatable fashion.

What is the Age of the Solar System?

2. What is the Age of the Solar System?

This lesson will tell you how old our solar system is and how we know that's the case thanks to radioactive decay, isotopes, half-life, and the solar nebula.

The Structure of Our Galaxy

3. The Structure of Our Galaxy

If you ever looked up at the night sky far away from city lights, you would've seen a band of light across the night sky and lots of stars scattered around the rest of the sky. Why? The structure of our galaxy will explain exactly why.

The Solar Corona & Solar Wind

4. 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.

Solar Flares, Solar Prominences & Coronal Mass Ejections

5. 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.

What is Solar Radiation? - Definition & Effects

6. What is Solar Radiation? - Definition & Effects

The sun plays an important role to us on Earth. It provides many things such as light and warmth. But, what is solar radiation and how does it affect us? In this video lesson, you'll learn about solar radiation, how it allows us to survive, and the influence it has on our global climate.

What Is Nuclear Fusion? - Definition & Process

7. What Is Nuclear Fusion? - Definition & Process

Learn about the process of nuclear fusion and where it occurs naturally in our universe. Then go further by learning how we have harnessed its power and about some future possible uses for nuclear fusion.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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