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Ch 23: OAE Earth & Space Science: The Sun & Other Stars

About This Chapter

These engaging lesson videos will highlight the structures and functions of our sun. Study it as you prepare for the OAE Earth and Space Science exam, and review what you need to know about the life cycle of a star.

OAE Earth & Space Science: The Sun & Other Stars - Chapter Summary

This chapter will help you learn more about the structures, functions and life cycles of our sun and other stars in the universe. Start your review by watching the engaging lesson videos taught by experienced instructors. When you finish, you should be prepared for questions on the Ohio Assessments for Educators (OAE) Earth and Space Science exam about:

  • Solar structures and life cycle
  • The atmosphere of the sun
  • The sun: energy movements and color changes
  • Differences between population I and population II stars
  • Interstellar medium and the formation of stars
  • Nuclear fusion
  • Stages of star life cycles
  • Supernovas, lower-main-sequence stars, young stars and giant stars
  • Photons

Fortify your comprehension of these subjects by completing the lesson assessments that accompany the videos. Developed by educators, the lessons are designed to be convenient and self-paced. Use the technology of your choice to watch online. Your questions about the sun and stars can be submitted to the experts at Study.com.

OAE Earth & Space Science: The Sun & Other Stars Chapter Objectives

The OAE Earth and Space Science exam is a computer-based certification exam used to certify science teachers interested in teaching these subjects. To demonstrate your mastery over these fields of science, provide your best answers to 150 multiple-choice questions. You'll have three hours to accomplish this goal. Nineteen percent of these questions are in the Astronomy content domain. Complete the activities of this chapter to prepare for questions in this domain about our sun and other stars.

16 Lessons in Chapter 23: OAE Earth & Space Science: The Sun & Other Stars
Test your knowledge with a 30-question chapter practice test
Structure of the Sun

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.

The Sun: Atmosphere & Facts

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.

Stages of the Sun's Life Cycle

3. 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.

How Energy Moves Within the Sun

4. 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.

Why the Sun Changes Color

5. Why the Sun Changes Color

The Sun does not change its true color. However, the way we observe the Sun on Earth makes it appear that the sun changes color. Why this is so is outlined in this lesson.

Population I and Population II Stars

6. Population I and Population II Stars

This lesson will explore the different populations of stars in our galaxy, including population I and II stars, as well as where you can find them and what metals are to an astronomer.

What is the Interstellar Medium?

7. What is the Interstellar Medium?

We'll explore something known as the interstellar medium, the birthplace of stars around our universe. You'll learn what it is made of, what interstellar dust is, and why it is there in the first place.

How Does the Interstellar Medium Help Form Stars?

8. How Does the Interstellar Medium Help Form Stars?

This lesson will describe how the interstellar medium plays a role in the earliest phases of the formation of stars. We'll define what a protostar is, how gravity is important, and what a cocoon is in an astronomical sense.

Star Formation: Main Sequence, Dwarf & Giant Stars

9. 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.

Nuclear Fusion & Star Formation

10. Nuclear Fusion & Star Formation

This lesson will explain how the processes of stellar formation leads to nuclear fusion. We'll also define nuclear fusion and hydrostatic equilibrium, and find out why temperature is so important to all of this.

Young Stars & Stellar Associations

11. 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.

How Stars Generate Energy

12. How Stars Generate Energy

This lesson will tell you how the sun generates energy, energy that depends on much more than the superficial notion of nuclear fusion. We'll delve deeply into this process by exploring protons, positrons, gamma rays, and a whole lot more!

Supernova and Supergiant Star Life Cycle

13. Supernova and Supergiant Star Life Cycle

Learn about one of the biggest explosions known to humankind - a supernova. Follow a star's life cycle and learn how a star changes from a red giant to a supernova to a black hole or neutron star.

Giant Stars and Helium Fusion

14. Giant Stars and Helium Fusion

This lesson will explain to you why a star nearing its end will become a giant star, and how the energy generating processes in its core will change as a result.

How Lower-Main-Sequence Stars Die

15. How Lower-Main-Sequence Stars Die

Not every star lives or dies the same way. Red dwarfs and medium-sized stars have key differences that determine their lifespan and how they die. This lesson will tell you why that is the case.

Photons, Particle Soup & Nucleosynthesis

16. Photons, Particle Soup & Nucleosynthesis

This lesson will explore what happened in the fractions of a second and minutes after the Big Bang occurred. You'll learn about matter, antimatter, photons, deuterons, positrons, and a lot more!

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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