The Formation and Composition of Soil: Definition and Factors


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Which is NOT one of the six main soil horizons?

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1. The five main factors of soil formation are

2. Biology influences soil formation because

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About This Quiz & Worksheet

Soil is much more than simple dirt, and this quiz/worksheet combination will help you understand how soil is formed and what it's composed of. The questions on the quiz will test you on your understanding of the soil horizons, the five factors of soil formation, and the characteristics of soil.

Quiz & Worksheet Goals

In these assessments, you'll be tested on:

  • Identifying the six main soil horizons
  • The five main factors of soil formation
  • How biology can influence soil formation
  • The physical characteristics of soil
  • The definition of humus

Skills Practiced

This quiz and worksheet will allow you to test your skills in the following areas:

  • Reading comprehension - ensure that you draw the most important information on soil formation and composition from the related lesson on this topic
  • Defining key concepts - verify that you can accurately define main ideas from the related lesson, such as humus and the soil horizons
  • Knowledge application - use your knowledge to answer questions about the formation and composition of soil, as well as the physical and biological characteristics of soil

Additional Learning

To learn more about this topic, review the accompanying lesson entitled, The Formation and Composition of Soil: Definition and Factors. This lesson covers the following objectives:

  • Discuss the physical characteristics of soil
  • Describe how soil is formed
  • Define parent material, humus, biological influence, and topography as these concepts relate to soil composition and formation
  • Identify the six main soil horizons