About This Chapter
How it works:
- Identify the lessons in the Holt McDougal Exploring the Oceans chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the exploring the oceans 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:
- Ocean water properties
- Natural factors that determine climate of a region
- Passive and active continental margins
- Ocean basin features
- Formation of an oceanic ridge system
- Open ocean biome
- Marine organism types
- Environmental effects of fish farming
- Advantages and disadvantages of tidal energy
- Bioremediation process
- Legislation for clean water
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1. Properties of Ocean Water
Ocean waters are salty and contain minerals and dissolved gases. They also have a high heat capacity and vary in density depending on temperature and salinity. Learn more about the unique chemical and physical properties of ocean water.
2. Natural Factors That Determine a Region's Climate
Climate is influenced by factors like atmosphere, ocean currents, landforms and plate tectonics. This lesson explains how these effects affect our weather patterns, which determine climate.
3. Active & Passive Continental Margins
Continental margins are areas that separate the continental crust and oceanic crust. Discover the differences between the tectonically active continental margins and the relatively quiet passive continental margins.
4. Ocean Basins: Definition, Formation, Features & Types
Ocean basins are those areas found under the sea. They can be relatively inactive areas where deposits of sediment slowly collect or active areas where tectonic plates meet. Learn how ocean basins form and about features such as oceanic ridges and trenches.
5. Oceanic Ridge System: Formation & Distribution
The oceanic ridge system is a continuous underwater mountain range with parts found in every ocean of the world. The ridge system is created when magma rising between diverging plates of the lithosphere cools and forms a new layer of crust.
6. Open Ocean Biome: Plants, Animals, Climate & Definition
Seventy-one percent of the surface of our planet is covered by the oceans. It should be no surprise that the open ocean biome is the largest biome on Earth. In this lesson, we will investigate the properties and inhabitants of the open ocean biome.
7. Types of Marine Organisms
Many marine organisms thrive under the surface of the ocean. Learn about the biodiversity of the oceans, from the microscopic plankton to the enormous whales, and how these organisms adapt to their oceanic environment.
8. Aquaculture: Environmental Effects of Fish Farming
Although we picture fish swimming in open water, a large portion of the fish we consume is actually grown in pens. This practice of aquaculture is a growing trend worldwide and has results in a variety of environmental problems.
9. Tidal Energy: Advantages and Disadvantages
The tides move a massive amount of water, and the energy from this moving water, known as tidal energy, can be captured and converted into electricity. Learn how tidal energy works and the advantages and disadvantages of this energy source.
10. Bioremediation: Microbes Cleaning Up the Environment
Bioremediation uses living organisms to clean up pollution. In this lesson, we will examine the role of microbes in bioremediation and why it is not a perfect solution for degrading environmental pollutants.
11. The Clean Water Act & Safe Drinking Water Act: Legislation for Clean Water
In this lesson, you will learn about the Clean Water Act of 1972 and the Safe Drinking Water Act of 1974. You'll discover how both laws help keep our waters free of pollution and safe for everyday use.
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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 14 - The Movement of Ocean Water
- Holt McDougal Earth Science Chapter 15 - The Atmosphere
- 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