About This Chapter
Running Water - Chapter Summary and Learning Objectives
Learn about running water through this chapter. Through our brief video lessons, you can explore how drainage basins collect water and then funnel it to a single point as well as learn about differences in the formation of bedrock and alluvial channels. Those who complete this chapter also should be able to do the following:
- Differentiate between laminar and turbulent streamflows.
- Define the processes of erosion and deposition.
- Use a landform diagram to determine the order of events that created a landform.
- Explain how erosion and a stream's movement of rock and sediment can affect the extent of the stream's valley.
- Describe the nature of meandering channels, including cut banks and oxbow lakes.
|Drainage Basins: Definition & Characteristics||Describe how drainage basins develop a river system.|
|Laminar & Turbulent Streamflows||Compare and contrast laminar and turbulent flow in streams.|
|Effect of Erosion and Deposition on Landforms||Explain how the cycles of nature affect the landforms of Earth through erosion and deposition.|
|How a Landform Diagram Describes the Geologic Progression of a Landscape||Determine a timeline of events that changed a landscape from a diagram.|
|The Formation of Stream Valleys||Describe the formation of stream valleys.|
|Base Level of a Stream: Definitions & Effect on Erosion||Understand the effect of base level on stream erosion.|
|Bedrock Channels: Formation & Process||Learn about the nature of bedrock channels.|
|Alluvial Channels: Definition & Types||Identify types and nature of alluvial channels, including meandering and braided streams.|
1. 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.
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. 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.
4. How a Landform Diagram Describes the Geological Progression of a Landscape
This lesson describes what a landform diagram is. We'll also discuss some basic laws of geology that can help scientists deduce both the order of events that create a landform and the geologic events that occur after a landform's formation.
5. 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.
6. 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.
7. Bedrock Channels: Formation & Process
Bedrock channels are eroded paths cut through solid rock foundations known as bedrock. Learn about bedrock channels and the processes that form them, including abrasion and plucking.
8. 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.
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Other chapters within the Earth Science 101: Earth Science course
- Earth Science Basics
- Geologic Time
- Characteristics of Matter
- Earth's Spheres and Internal Structure
- Plate Tectonics
- Minerals and Rocks
- Igneous Rocks
- Volcanic Landforms
- Weathering and Erosion
- Sedimentary Rocks: A Deeper Look
- Metamorphic Rocks: A Deeper Look
- Rock Deformation and Mountain Building
- Water Balance on Earth
- Ground Water
- Coastal Hazards
- Earth's Atmosphere
- Weather, Air Masses & Storms
- Earth History
- Energy Resources
- Studying for Earth Science 101