Ch 19: Praxis Earth & Space Sciences: Atmosphere & Hydrosphere

About This Chapter

This chapter can tell you about the Earth's atmosphere and hydrosphere. These video lessons and quizzes about air and water will help you prepare for the Praxis Earth and Space Sciences exam.

Praxis Earth and Space Sciences: Atmosphere and Hydrosphere - Chapter Summary

In these lessons, you will learn about the atmosphere and hydrosphere and how their properties help maintain life. The hydrologic cycle is examined, and you'll also get a look at how water is distributed on our planet. Lessons about the atmosphere explain its structure and about the role of nitrogen. This chapter's video lessons will give you a solid understanding of the following:

  • Properties of water and how they aid in supporting life
  • Precipitation, condensation and evaporation
  • How evaporation and transpiration contribute to the hydrologic cycle
  • Distribution of water on Earth
  • Components of the atmosphere and their contribution to ozone depletion
  • Structure of the atmosphere
  • Significance of nitrogen fixation to animals and plants

These lessons are led by experienced instructors who guide you through each topic, using examples to clarify what they're teaching. You can use the accompanying quizzes to assess your knowledge and return to the video lesson as needed to review key concepts. Within the video transcript, use links to take you to extra text lessons that teach in-depth related topics.

Objectives of the Praxis Earth and Space Sciences: Atmosphere and Hydrosphere Course

Many states require that teachers pass the Praxis exam in subjects in which they wish to be certified. The Praxis Earth and Space Sciences exam judges the competency to teach the subject at the secondary school level. It contains 100 multiple-choice questions. You get two hours to complete the test, which is available on paper or via the computer.

The exam is divided into six sections, and the material included in this chapter is in section V, Earth's Atmosphere and Hydrosphere. That section contains 18-22 questions, which makes up 18-22% of the total exam.

7 Lessons in Chapter 19: Praxis Earth & Space Sciences: Atmosphere & Hydrosphere
Test your knowledge with a 30-question chapter practice test
What Are the Properties of Water? - Unique Properties that Support Life on Earth

1. What Are the Properties of Water? - Unique Properties that Support Life on Earth

In this video lesson you will learn about water and its unique properties. You will also develop an understanding of how these properties make life as we know it possible.

The Water Cycle: Precipitation, Condensation, and Evaporation

2. 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.

How Evaporation & Transpiration Contribute to the Hydrologic Cycle

3. How Evaporation & Transpiration Contribute to the Hydrologic Cycle

Evaporation and transpiration are important components of the water cycle, and while they are the same process they arise from different sources. In this video lesson you will learn about these two parts of the cycle and how they contribute to the overall movement of water on Earth.

The Distribution of Water on Earth

4. The Distribution of Water on Earth

Water covers most of Earth but in a variety of forms. In this video lesson you will learn about how water is distributed on Earth, though you may be surprised to find out just how little of it we can access!

Major Components of the Atmosphere

5. Major Components of the Atmosphere

Our atmosphere is a complex mixture of many different gases. In this video lesson you will identify the major components of Earth's atmosphere as well as how much there is of each.

The Structure of the Atmosphere

6. The Structure of the Atmosphere

If you've ever climbed a mountain or been to the beach, you know that the atmosphere is different at different levels. This lesson explains how the structure of the atmosphere is really like a layer cake.

Nitrogen Fixation: Significance to Plants and Humans

7. Nitrogen Fixation: Significance to Plants and Humans

Almost 80% of our atmosphere is nitrogen, but we can't use it. We will look at how this unusable nitrogen is converted into a form we can use and why nitrogen is important to plants and humans.

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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