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Ch 18: The Evolution of Stars

About This Chapter

We can help you quickly and effectively study for a test that assesses your knowledge of the evolution of stars. Use our entertaining lessons and short quizzes to strengthen your understanding of star formation, pulsars and more.

The Evolution of Stars - Chapter Summary

Whether you're looking for a refresher of the evolution of stars or want to fill gaps in your existing knowledge, this chapter can help! Engaging lessons offer a complete overview of stars, including how they are formed and classified. You can also get reacquainted with unique characteristics of stars. Once you've finished this chapter, you will be ready to do the following:

  • Define and share important facts about stars
  • List and describe types of stars by color, size and life cycle
  • Explain how stars are born and discuss their subsequent stages of life
  • Differentiate between a stellar association and star cluster
  • Share the definition and a description of pulsars
  • Outline the life cycle of a black hole and discuss black hole myths vs. reality
  • Discuss the purpose of an H-R diagram
  • Detail ways scientists determine the distance, age and relative motion of stars

This chapter offers a self-paced format that lets you take control of your studying process. Choose the lessons you want to review, visit as often as you'd like, and study any time your schedule permits. If you have questions about specific topics covered in the lessons, simply submit them to subject-matter experts using the Dashboard. When you're ready, utilize our self-assessment quizzes and practice exam to confirm your understanding of the evolution of stars.

8 Lessons in Chapter 18: The Evolution of Stars
Test your knowledge with a 30-question chapter practice test
Stars: Definition & Facts

1. Stars: Definition & Facts

Before you name a star after someone, get the facts! Stars are a lot more than pretty lights up in the sky. Complete this lesson to learn more about nuclear fusion, main sequence stars, red giants, and more.

Types of Stars by Size, Color and Life Cycle

2. Types of Stars by Size, Color and Life Cycle

Learn to identify the different sizes and colors of stars and how they relate to the star life cycle. In this lesson, we'll talk about spectral classification, how many stars there are of each type and the approximate color of the different classes of stars.

Star Formation: Main Sequence, Dwarf & Giant Stars

3. Star Formation: Main Sequence, Dwarf & Giant Stars

Learn how stars are born, beginning with a protostar. Then learn about stars in later stages of life, including main sequence stars, brown dwarfs, red giants, and black holes.

Young Stars & Stellar Associations

4. Young Stars & Stellar Associations

This lesson will describe the concept of a stellar association for you and how it differs from a star cluster. You'll also learn about the three general kinds of stellar associations: R associations, T associations, and OB associations.

What Are Pulsars?

5. What Are Pulsars?

This lesson will define and describe pulsars. Importantly, you'll learn why the term is a bit of a misnomer, what acts as a pulsar and why, and what it pulses out.

Life Cycle of Black Holes

6. Life Cycle of Black Holes

Learn about black holes, their myths and their reality. Learn how black holes form after stars undergo supernovae and create singularities. Discover how big black holes grow, how scientists find black holes and where black holes are located in the universe.

H-R Diagram: Definition & Purpose

7. H-R Diagram: Definition & Purpose

The Hertzsprung-Russell provides important information about stars such as color, temperature and luminosity. Check out which stars are blue, hot and red, and which ones are so cool they're in a class by themselves.

Determining the Age, Distance & Relative Motion of Stars

8. Determining the Age, Distance & Relative Motion of Stars

Even though we could never travel to a star in the sky to study it, astronomers still find ways to learn a lot about stars. In this lesson, you'll learn how they can find a star's age, distance, and relative motion to us.

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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