About This Chapter
OAE Earth and Space Science: Galaxies - Chapter Summary
The illuminating video lessons in this chapter detail aspects of the Milky Way Galaxy as well as the sun, moon and planets of our solar system. Prior to sitting for the OAE Earth and Space Science examination, you could learn more about how a starburst galaxy is formed, recall how to identify differences between galaxies and reinforce your knowledge of voids and superclusters. This chapter's videos might also help you with:
- Discovering characteristics of the universe, the galaxy and the solar system
- Exploring the probability and results of the collision of galaxies
- Explaining the formation of galaxies, including the Milky Way Galaxy
- Discussing the purpose of the Hubble tuning fork diagram
- Identifying different kinds of spiral galaxies and galaxy clusters
- Describing the discovery and structure of the Milky Way
- Understanding the mass of our galaxy
By utilizing these instructor-delivered video lessons as valuable study tools, you could prepare to answer questions about galaxies when you take the OAE Earth and Space Science examination. The lessons include video tags for locating information and written transcripts reflect the videos. Submit your questions on galaxies to the experts, and test your recollection by taking the lesson quizzes and the practice chapter examination.
OAE Earth and Space Science: Galaxies Chapter Objectives
Domain V of the five-part OAE Earth and Space Science examination will evaluate your knowledge of galaxies. You'll display your expertise throughout this 'Astronomy' domain, which accounts for 19% of the assessment score. This is a computer-administered examination that includes 150 multiple-choice questions. You'll be allowed up to 180 minutes to complete the test.
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.
2. The Collision & Assembly of Galaxies
This lesson will talk about how the assembly and collision of galaxies is actually related, what starbursts are, what will happen to our own galaxy in four billion years, and why our galaxy is a galactic cannibal!
3. Galaxy Collisions: Ring & Elliptical Galaxies
This lesson will discuss the collisions between galaxies and what happens to the stars within them. It will also cover what a ring galaxy is and how it forms, as well as where elliptical galaxies are most common.
4. 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.
5. The Distribution of Galaxy Properties Along the Hubble Tuning Fork
This lesson will explore Edwin Hubble's famous classification scheme. We'll go over the major morphological differences between the categories of galaxies and the differences within them.
6. Types of Spiral Galaxies
Spiral galaxies are classified into several different types, depending on the characteristics of certain parts of their galaxy. Specifically, this lesson will go over Hubble's classification scheme of spiral galaxies with a small nod to lenticular galaxies as well.
7. What Are the Different Types of Galaxy Clusters?
This lesson will define five different types of clusters: rich, poor, irregular, regular, and superclusters. We'll also find out what voids are and what the Local Group is.
8. 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.
9. How Our Galaxy Was Discovered
This lesson will outline for you the basics of how the galaxy you live in, the Milky Way Galaxy, was discovered over time. You'll also learn about RR Lyrae and Cepheid variable stars.
10. 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.
11. The Mass of Our Galaxy
This lessons explores the estimates and numbers surrounding the mass of the Milky Way Galaxy and how they relate to Keplerian motion, the galactic corona, and dark matter.
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Other chapters within the Ohio Assessments for Educators - Earth & Space Science (014): Practice & Study Guide course
- OAE Earth & Space Science: Research & Society
- OAE Earth & Space Science: Scientific Inquiry
- OAE Earth & Space Science: Laboratory Safety
- OAE Earth & Space Science: Notation & Measurements
- OAE Earth & Space Science: Modern Scientific Theories
- OAE Earth & Space Science: Interdisciplinary Science
- OAE Earth & Space Science: Historical Geology
- OAE Earth & Space Science: Theory of Evolution
- OAE Earth & Space Science: Plate Tectonics
- OAE Earth & Space Science: Volcanoes
- OAE Earth & Space Science: Earth's Materials
- OAE Earth & Space Science: Natural Resources
- OAE Earth & Space Science: Earth's Internal Structure
- OAE Earth & Space Science: Weathering, Erosion & Deposition
- OAE Earth & Space Science: Hydrologic Cycle
- OAE Earth & Space Science: Oceans
- OAE Earth & Space Science: Freshwater
- OAE Earth & Space Science: Earth's Atmosphere
- OAE Earth & Space Science: Weather
- OAE Earth & Space Science: Climate & Climate Change
- OAE Earth & Space Science: The Universe
- OAE Earth & Space Science: The Sun & Other Stars
- OAE Earth & Space Science: Solar System
- OAE Earth & Space Science: The Earth & Moon
- OAE Earth & Space Science: Astronomy
- Ohio Assessments for Educators Earth & Space Science Flashcards