About This Chapter
How it works:
- Identify the lessons in the Holt McDougal Atmosphere chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the atmosphere 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:
- Major components of the atmosphere
- Structure of the atmosphere
- Heat transfer mechanisms
- Global warming
- Greenhouse gases and the enhanced greenhouse effect
- Factors that affect wind
- General circulation of the atmosphere
- Sources and types of air pollution
- Importance of the ozone layer
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1. Major Components of the Atmosphere
Our atmosphere is a complex mixture of many different gases. In this video lesson you will identify the major components of Earth's atmosphere as well as how much there is of each.
2. The Structure of the Atmosphere
If you've ever climbed a mountain or been to the beach, you know that the atmosphere is different at different levels. This lesson explains how the structure of the atmosphere is really like a layer cake.
3. Mechanisms of Heat Transfer: Conduction, Convection & Radiation
There are three main ways that heat is transferred between substances or objects. In this video lesson you'll learn about each one, and identify the differences between them.
4. Global Warming: Atmospheric Causes and Effect on Climate
Global warming is a multifaceted, complex issue. It involves both natural and human causes that can increase the amount of greenhouse gases. This lesson looks at some of the facts about global warming and how they could contribute to climate change.
5. Greenhouse Gases and the Enhanced Greenhouse Effect
In this video lesson, you will learn about the five main greenhouse gases and how their unnaturally high concentrations are leading to the enhanced greenhouse effect and global climate change on Earth.
6. Factors That Affect Wind: Pressure Gradient Forces, Coriolis Effect & Friction
In this video lesson, you will learn about wind and some factors that affect it, such as air temperature and pressure, the Coriolis effect, and friction. By the end of this lesson, you will also understand how Earth's rotation plays a role in how winds travel.
7. The General Circulation of the Atmosphere
The Sahara Desert, tropical rainforests, and cold polar winds are all due to Earth's rotation. In this video lesson, you will learn how this rotation has created global air circulation patterns on Earth and how it is responsible for such diverse climate patterns across the globe.
8. What Is Air Pollution? - Definition, Sources & Types
In this video lesson, you will learn about the sources and types of air pollution. You will be able to identify the six classes of air pollutants identified by the Environmental Protection Agency and the Clean Air Act of 1970.
9. The Ozone Layer: Importance and the Harmful Effects of Thinning
In this lesson, you will learn the importance of the ozone layer and how it is depleted. You will also study the research and policy that has been instrumental in its recovery.
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Other chapters within the Holt McDougal Earth Science: Online Textbook Help course
- Holt McDougal Earth Science Chapter 1 - The World of Earth Science
- Holt McDougal Earth Science Chapter 2 - Maps as Models of the Earth
- Holt McDougal Earth Science Chapter 3 - Minerals of the Earth's Crust
- Holt McDougal Earth Science Chapter 4 - Rocks: Mineral Mixtures
- Holt McDougal Earth Science Chapter 5 - Energy Resources
- Holt McDougal Earth Science Chapter 6 - The Rock and Fossil Record
- Holt McDougal Earth Science Chapter 7 - Plate Tectonics
- Holt McDougal Earth Science Chapter 8 - Earthquakes
- Holt McDougal Earth Science Chapter 9 - Volcanoes
- Holt McDougal Earth Science Chapter 10 - Weathering and Soil Formation
- Holt McDougal Earth Science Chapter 11 - The Flow of Fresh Water
- Holt McDougal Earth Science Chapter 12 - Agents of Erosion and Deposition
- Holt McDougal Earth Science Chapter 13 - Exploring the Oceans
- Holt McDougal Earth Science Chapter 14 - The Movement of Ocean Water
- Holt McDougal Earth Science Chapter 16 - Understanding Weather
- Holt McDougal Earth Science Chapter 17 - Climate
- Holt McDougal Earth Science Chapter 18 - Studying Space
- Holt McDougal Earth Science Chapter 19 - Stars, Galaxies, and the Universe
- Holt McDougal Earth Science Chapter 20 - Formation of the Solar System
- Holt McDougal Earth Science Chapter 21 - A Family of Planets
- Holt McDougal Earth Science Chapter 22 - Exploring Space