Ch 25: Overview of the Solar System & Universe

About This Chapter

In this engaging chapter you'll find fun lessons you can study at your convenience to improve your understanding of the solar system and universe. Self-assessment quizzes make it easy to check your comprehension and ensure you're ready to excel on an upcoming test.

Overview of the Solar System & Universe - Chapter Summary

The bite-sized lessons in this chapter provide a comprehensive overview of solar system and universe topics. Get reacquainted with stars, asteroids and gravity in the solar system. The lessons also ensure you understand the origins of the universe and Big Bang theory. After finishing this chapter, you will be able to:

  • Discuss the solar nebula theory and formation of the solar system
  • List and describe major characteristics of planets in the solar system
  • Define and explain characteristics of meteorites and comets
  • Describe orbit as it relates to planets and satellites
  • Point out major interactions in the Sun-Earth-Moon system
  • Identify important points on the celestial sphere
  • Provide a description of a galaxy
  • Detail how to use technology to study Earth and theuniverse

All the lessons in this chapter are available 24 hours a day via your computer, smartphone or tablet of choice. This flexibility allows you to study whenever and wherever you desire. As you progress through the lessons, feel free to assess your comprehension of concepts covered by taking multiple-choice quizzes. To get a broader review of this chapter before exam day, be sure to take our comprehensive practice exam.

11 Lessons in Chapter 25: Overview of the Solar System & Universe
Test your knowledge with a 30-question chapter practice test
Origins of the Universe: The Big Bang and Expanding & Contracting Universes

1. 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.

The Solar Nebula Theory: Formation of the Solar System

2. 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.

Major Characteristics of Planets in the Solar System

3. 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.

Asteroids, Meteorites & Comets: Definitions and Characteristics

4. Asteroids, Meteorites & Comets: Definitions and Characteristics

This lesson will cover the definitions and characteristics of asteroids, comets and meteorites. It will also explore what impact they have had on Earth and the impact they might have in the future.

What is Orbit? - Planets & Satellites

5. What is Orbit? - Planets & Satellites

This lesson talks about what an orbit is and defines some common terms associates with orbit. We also talk specifically about orbits of planets and satellites.

Important Points on the Celestial Sphere

6. Important Points on the Celestial Sphere

This lesson will discuss some important points and lines located on the celestial sphere, including the zenith, nadir, celestial equator, meridian, and north and south celestial poles.

Interactions in the Sun-Earth-Moon System

7. Interactions in the Sun-Earth-Moon System

Learn how the sun, earth, and moon interact with each other to create tides, phases, eclipses, seasons, solar winds, and precession. Take a quiz and see how much you've picked up.

Stars: Definition & Facts

8. 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.

Galaxy: Definition & Explanation

9. Galaxy: Definition & Explanation

Galaxies are collections of stars, dust, and gas rotating around super massive black holes. This lesson will cover the structures and types of galaxies, including spiral, elliptical, and irregular galaxies.

Gravity in the Solar System: Shaping Planets & Stars

10. Gravity in the Solar System: Shaping Planets & Stars

After watching this video, you will be able to explain what gravity is, and the role it plays in forming the shapes of planets and stars. A short quiz will follow.

Using Technology to Study the Earth & Universe

11. Using Technology to Study the Earth & Universe

Have you ever wondered how we know so much about the universe? Learn about how we use technology to study the universe, from the tiny to the enormous. Then take a quiz to test your knowledge.

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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