About This Chapter
How it works:
- Identify the lessons in the Holt McDougal Flow of Fresh Water chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the flow of fresh water 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:
- The water cycle
- Laminar and turbulent streamflows
- Base level of a stream
- Stream valley formation
- Characteristics of drainage basins
- Effects of erosion on landforms
- Alluvial channel types
- Causes of floods
- Formation of springs
- Cavern and sinkhole formation
- Sources of water pollution
- Water conservation
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1. The Water Cycle: Precipitation, Condensation, and Evaporation
This lesson discusses the processes water takes as it moves around the Earth in the water cycle. You'll get an in-depth look at condensation, precipitation, and evaporation.
2. Laminar & Turbulent Streamflows
Streams come in many different shapes and sizes. They can also vary in speed and direction of flow. In this lesson, we will explore two different ways that water can flow through a stream.
3. Base Level of a Stream: Definition & Effect on Erosion
Water stops flowing when it reaches its lowest level; this is called the base level. Learn about the base level of a stream, how it affects erosion, and some examples of local base levels, including lakes, dams and waterfalls.
4. The Formation of Stream Valleys
Running water is very powerful and has the ability to change the land around it. In this lesson, we will explore the creation of stream valleys and how they are shaped by the water that runs through them.
5. Drainage Basins: Definition & Characteristics
Do you know where the water in your area flows? In this lesson, we will explore the system of drainage basins and how they help develop river systems. We will also investigate some extreme examples of drainage basins.
6. Effect of Erosion and Deposition on Landforms
Landforms are constantly being broken down and reformed by the processes of weathering, erosion, and deposition. In this lesson, we explore chemical and physical weathering and how the face of the earth gets changed.
7. Alluvial Channels: Definition & Types
An alluvial channel is a water channel made up of loose sediments called alluvium. Learn about the types of alluvial channels, meandering channels and braided channels, and the characteristics that make them unique in this lesson.
8. What Are Floods? - Causes, Types & Prevention
In this video lesson, you will study floods, their causes and their effects. You will learn to identify various methods that are used to prevent floods and explore how preventing natural flood cycles can lead to dangerous flood events.
9. Groundwater System: Definition & Geological Role
Surprisingly, most of Earth's liquid freshwater is not where you might think! In this video lesson, you will learn about groundwater, as well as the important roles it plays in sustaining life and shaping Earth.
10. Springs: Definition, Formation & Types
In this video lesson, you will learn about springs and how they form. You will also understand how springs are classified based on how they flow as well as how strongly they flow.
11. Wells: Definition & Types
Wells are used all over the world and are an important source of water for many people. In this video lesson you will identify different types of wells, as well understand their underground source of water.
12. Caverns & Sinkholes: Definition, Formation & Effects
Groundwater can have dramatic effects on Earth's landscape, both above and below ground. In this video lesson you will learn about caverns and sinkholes, both of which are directly related to groundwater movement.
13. Water Pollution: Definition, Types, and Sources
In this lesson, you will learn about the different types and sources of water pollution. You will gain an understanding of both surface water and groundwater pollution and the similarities and differences between them.
14. Water Treatment: Improving Water Quality
In this lesson, you will learn how water is purified for drinking, and how wastewater is treated before being put back into the environment. You will also learn about water purification issues in developing countries.
15. Water Conservation: How Water Management Can Lead to Sustainable Use
In this video lesson you will learn about the importance of water conservation. You will also learn about the two ways freshwater is used, and how proper water use can lead to sustainability in agriculture, homes, and manufacturing.
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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 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 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