About This Chapter
How It Works:
- Identify the lessons in the Holt Science Spectrum - Physical Science Solar System chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the solar system topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Planet formation
- Satellite formation
- Formation of the moon and its phases
- Solar eclipses
- Asteroids, meteorites and comets
- Dwarf, inner and outer planets of our solar system
- Theories of Tycho Brahe and Copernicus on the universe
- Planets around distant stars
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1. What are Planets? - Facts & Definition
In this lesson, you'll learn the official definition of a planet, how planets are formed, and about the two types of planets found in our solar system: terrestrial planets and gas giants.
2. Solar System Overview
This lesson will go over the major aspects of our solar system, including the sun, planets, moons, asteroids, comets, meteors, meteorites, and meteoroids.
3. Satellite Formation in Our Solar System
This lesson will describe regular, irregular, collision fragments, captured asteroids, and other types of satellites orbiting around the planets of the solar system.
4. Moon Phases: Names & Sequence
This lesson will go over the phases of the moon. The full moon, new moon, waxing, waning, and gibbous phases and the order in which they occur and what they look like are discussed.
5. What Is a Solar Eclipse?
This lesson will describe what a solar eclipse is, why it's possible, when a partial or a total one will occur, and what cool effects occur during one.
6. Inner Planets of the Solar System: Mercury, Venus, Earth & Mars
Take a tour of the four inner planets: Mercury, Venus, Earth and Mars. Known as the terrestrial planets, find out what makes each of them unique and how they are different from the outer planets, the gas giants.
7. 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.
8. Dwarf Planets of the Solar System: Pluto, Eris, Haumea & Ceres
Discover why Pluto had to leave the league of planets and was downgraded to a dwarf planet. Learn the definitions for planet and dwarf planet. Find out about the currently classified dwarf planets in our solar system: Pluto, Eris, Ceres, Haumea and Makemake.
9. Outer Planets of the Solar System: Jupiter, Saturn, Uranus, Neptune
Take a tour of the outer planets of our solar system: Jupiter, Saturn, Uranus, and Neptune. Find out what makes each of these gas giants unique and learn about Pluto, a dwarf planet.
10. Tycho Brahe and Copernicus Take On the Known Universe
Astronomy according to Ptolemy was the popular theory until Copernicus turned it on its head. This lesson explores the theories of Copernicus and Brahe and how the two changed astronomical study.
11. Formation of the Moon: Theories
Explore the four major theories on the formation of the Moon. The theories include the fission theory, capture theory, condensation theory and giant impact theory. Also look at both information supporting and flaws found in these theories.
12. Planets Around Distant Stars
This lesson will describe how extrasolar planets can be found and if any have been found. Methods like Doppler shifts, microlensing, and transits will be defined.
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Other chapters within the Holt Science Spectrum - Physical Science: Online Textbook Help course
- Holt Physical Science Chapter 1: Introduction to Science
- Holt Physical Science Chapter 2: Matter
- Holt Physical Science Chapter 3: States of Matter & Energy
- Holt Physical Science Chapter 4: Atoms & the Periodic Table
- Holt Physical Science Chapter 5: The Structure of Matter
- Holt Physical Science Chapter 6: Chemical Reactions
- Holt Physical Science Chapter 7: Solutions
- Holt Physical Science Chapter 8: Acids, Bases & Salts
- Holt Physical Science Chapter 9: Nuclear Changes
- Holt Physical Science Chapter 10: Motion
- Holt Physical Science Chapter 11: Forces
- Holt Physical Science Chapter 12: Work & Energy
- Holt Physical Science Chapter 13: Heat & Temperature
- Holt Physical Science Chapter 14: Waves
- Holt Physical Science Chapter 15: Sound & Light
- Holt Physical Science Chapter 16: Electricity
- Holt Physical Science Chapter 17: Magnetism
- Holt Physical Science Chapter 18: Communication Technology
- Holt Physical Science Chapter 20: The Universe
- Holt Physical Science Chapter 21: Planet Earth
- Holt Physical Science Chapter 22: The Atmosphere
- Holt Physical Science Chapter 23: Using Natural Resources