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Ch 54: CEOE Middle Level Science: Stars, Galaxies & the Universe

About This Chapter

Use our video lessons and quizzes to review information about basic theories and concepts of astronomy. These space science topics are addressed on the Certification Examinations for Oklahoma Educators (CEOE) Middle Level Science exam.

CEOE Middle Level Science: Stars, Galaxies & the Universe - Chapter Summary

The lessons comprising this chapter provide overviews of the solar system, planets, stars, the Milky Way galaxy and the universe. They explore such topics as galaxy and universe formation and types and characteristics of celestial bodies. Once you have a full understanding of this material, you should be able to correctly answer questions on the CEOE Middle Level Science exam regarding the following:

  • Relating facts about the solar system, galaxy and universe
  • Explaining possible origins as well as characteristics of the universe
  • Describing how galaxies form
  • Discussing hypotheses about the formation of the Milky Way galaxy
  • Summarizing theories about the formation of the solar system
  • Identifying different types of stars and how they form
  • Understanding the structure of the Milky Way galaxy
  • Noting characteristics of planets in the solar system

Each lesson is supported by helpful illustrations that help to clarify the material and make learning fun and engaging. Taking the accompanying quizzes can further help you prepare for the CEOE Middle Level Science exam by exposing you to the same multiple-choice format used on the actual test.

10 Lessons in Chapter 54: CEOE Middle Level Science: Stars, Galaxies & the Universe
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.

Origins of the Universe: The Big Bang and Expanding & Contracting Universes

2. Origins of the Universe: The Big Bang and Expanding & Contracting Universes

Students will learn the origins of the universe, the Big Bang theory, the timeline of the universe, how the universe is still expanding to this day, and what astronomers expect the universe to look like in the future.

Galaxy Formation: Spiral, Elliptical & Irregular Galaxies

3. Galaxy Formation: Spiral, Elliptical & Irregular Galaxies

This lesson explains how galaxies form, starting with the Big Bang. You'll also learn about the solar nebula hypothesis and three galaxy types, including spiral, elliptical, and irregular galaxies.

The Formation of the Milky Way Galaxy

4. The Formation of the Milky Way Galaxy

This lesson will explore two hypotheses as to how the Milky Way galaxy formed. These are the top-down and bottom-up hypotheses. We'll also go into what special connection you personally have to all of this.

The Solar Nebula Theory: Formation of the Solar System

5. The Solar Nebula Theory: Formation of the Solar System

This lesson will go over the theory that explains how the solar system formed, what theory had once competed with it, and what important implication this theory carries.

Star Formation: Main Sequence, Dwarf & Giant Stars

6. 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.

Types of Stars by Size, Color and Life Cycle

7. 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.

The Structure of Our Galaxy

8. 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.

Planets of the Solar System: Orbits & Visibility

9. Planets of the Solar System: Orbits & Visibility

This lesson will tell you which planets in our solar system you can see with the naked eye and which ones you cannot. You'll also learn how they appear to move in our sky and why we can see them in the first place.

Major Characteristics of Planets in the Solar System

10. Major Characteristics of Planets in the Solar System

This lesson will go over some characteristics of the planets in our solar system with respect to their masses, diameters, temperatures, densities, and rotation.

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.
Not Taken

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Other Chapters

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