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Ch 55: Weathering & Erosion - ORELA Middle Grades General Science

About This Chapter

Ease the process of studying for the ORELA Middle Grades General Science assessment by taking advantage of this overview of weathering and erosion. Watch video lessons to strengthen your comprehension of the subject area.

Weathering & Erosion: ORELA Middle Grades General Science - Chapter Summary

You can use the resources in this chapter to review concepts associated with weathering and erosion. Completing the lessons ensures you have the knowledge to do the following on the ORELA exam:

  • Describe the effects of erosion and deposition on landforms
  • Define and discuss the process and types of mechanical weathering
  • Explain the process of chemical weathering
  • Identify factors that affect the rate of weathering
  • Analyze the formation and composition of soil
  • Share the meanings of soil profile and soil erosion
  • Discuss types of wasting that include slump and debris flow

Get the definitions and examples you need to successfully answer questions related to weathering and erosion on the exam. Submit any questions you have about topics in the lessons to experts who are eager to help.

Weathering & Erosion: ORELA Middle Grades General Science Chapter Objectives

In Oregon, the NES Middle Grades General Science assessment has replaced the ORELA test. Take it to secure teacher licensure that enables you to educate students on general science at the middle grades level. The test consists of 150 multiple-choice questions and is taken on a computer. A passing score is 228 or higher.

In this chapter, you can explore topics covered in the Earth and Space Science content domain, which constitutes about 25% of the total exam. Take advantage of resources that can help you better understand weathering and erosion and improve your chances of success on the assessment. Watch the short videos, take self-assessment quizzes and reinforce the lessons with the chapter exam.

8 Lessons in Chapter 55: Weathering & Erosion - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
Effect of Erosion and Deposition on Landforms

1. 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.

Mechanical Weathering: Definition, Process, Types & Examples

2. Mechanical Weathering: Definition, Process, Types & Examples

Over time, the forces of the natural environment cause rocks to physically break down in a process called mechanical weathering. Learn how factors, such as wind, water and temperature fluctuations lead to mechanical weathering.

What is Chemical Weathering? - Definition, Process & Examples

3. What is Chemical Weathering? - Definition, Process & Examples

Chemical weathering is what happens when rocks are broken down and chemically altered. Learn about the different types of chemical weathering, including hydrolysis, oxidation, carbonation, acid rain and acids produced by lichens.

Factors that Affect the Rate of Weathering

4. Factors that Affect the Rate of Weathering

Weathering is the process that breaks down rocks into smaller pieces. The rate at which rock weathers depends on certain factors. Learn how factors, such as exposure to the atmosphere, the composition of rock and climate affect the rate of weathering.

The Formation and Composition of Soil: Definition and Factors

5. The Formation and Composition of Soil: Definition and Factors

In this video lesson you will learn how soil is formed and what it is made of. You will also learn about how soil is classified and distributed in layers underground.

Soil Profile: Definition, Development & Types

6. Soil Profile: Definition, Development & Types

Explore the characteristics of soil profiles, their horizons and how they develop. Then you can use this knowledge to help you determine the conditions under which the soil developed and understand the history of the surrounding landscape.

What is Soil Erosion? - Definition and Causes

7. What is Soil Erosion? - Definition and Causes

With soil erosion, the top layer of soil is worn away due to factors such as water, wind and tillage of farmland. Learn about soil erosion and how natural elements and human activities break up and transport soil.

Types of Wasting: Slump, Rockslide, Debris Flow & Earthflow

8. Types of Wasting: Slump, Rockslide, Debris Flow & Earthflow

Mass wasting is a type of erosion that results in the mass movement of rock, soil and debris down a slope. Learn about the different types of mass wasting, including slumps, rockslides, debris flows and earthflows.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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Other Chapters

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