Ch 9: Running Bodies of Water

About This Chapter

These fast, fun video lessons are designed to teach your middle-schooler about bodies of flowing water. Short quizzes after each lesson let you assess your student's comprehension of the material.

Running Bodies of Water - Chapter Summary

This chapter helps your student learn about flowing water by using engaging, accessible videos to describe streams, currents, drainage and erosion. Students learn about the factors that influence the flow of water in a channel and consider the impact that human activity has on rivers and streams. Multiple-choice quizzes help students retain the facts by letting them use their new-found knowledge. If your middle-schooler would like additional help or advice, he or she can submit a question to one of our instructors.

Chapter Lessons and Objectives

Video Objectives
Hydraulic Geometry in Water Flow Lesson explains how water flows in channels.
Drainage Basins: Definition & Characteristics Students discover how drainage basins develop into river systems.
Laminar & Turbulent Streamflows Students get a comparison of laminar flow and turbulent flow.
Understanding Graded Streams Lesson describes graded streams and how they change over time.
Effect of Erosion and Deposition on Landforms Students explore how landforms are built up and washed away by processes of deposition and erosion.
Hillslope Erosion Process: Formation of Rills & Gullies Students learn about hillslope erosion and how rills and gullies form.
How a Landform Diagram Describes the Geological Progression of a Landscape Lesson explains how to read a landform diagram.
The Formation of Stream Valleys Students discover the processes by which stream valleys form.
Base Level of a Stream: Definition & Effect on Erosion Lesson explains the impact of stream erosion.
Fluctuations in Stream Discharge Students consider factors that affect the flow of a stream.
Bedrock Channels: Formation & Process Lesson describes the formation of bedrock channels.
Alluvial Channels: Definition & Types Students explore different types and features of alluvial channels.
Effect of Humans on Streams Lesson explains the effects of human behavior on stream ecology.

13 Lessons in Chapter 9: Running Bodies of Water
Test your knowledge with a 30-question chapter practice test
Hydraulic Geometry in Water Flow

1. Hydraulic Geometry in Water Flow

After watching this video, you will be able to explain what hydraulic geometry is. You'll also be able to describe the geometric features of a river at different points and how they are formed. A short quiz will follow.

Drainage Basins: Definition & Characteristics

2. 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.

Laminar & Turbulent Streamflows

3. 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.

Understanding Graded Streams

4. Understanding Graded Streams

After watching this video, you should be able to explain what a graded stream is, how streams change over time, and how a balance in erosion and deposition can be reached. A short quiz will follow.

Effect of Erosion and Deposition on Landforms

5. 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.

Hillslope Erosion Process: Formation of Rills & Gullies

6. Hillslope Erosion Process: Formation of Rills & Gullies

After watching this video, you will be able to explain what rills and gullies are, describe how they're formed, and how they relate to human activity. A short quiz will follow.

How a Landform Diagram Describes the Geological Progression of a Landscape

7. 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.

The Formation of Stream Valleys

8. 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.

Base Level of a Stream: Definition & Effect on Erosion

9. 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.

Fluctuations in Stream Discharge

10. Fluctuations in Stream Discharge

After watching this video, you will be able to explain what stream discharge is, as well as when and how it varies (or doesn't vary) over the course of a river. A short quiz will follow.

Bedrock Channels: Formation & Process

11. 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.

Alluvial Channels: Definition & Types

12. 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.

Effect of Humans on Streams

13. Effect of Humans on Streams

After watching this video, you will be able to explain and describe the various ways humans impact streams, including stream flow, pollution, and bodiversity. A short quiz will follow, providing an opportunity to see what you have retained from the lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the Geography: Middle School course

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