About This Chapter
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.
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.
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.
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.
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!
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.
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.
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.
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Other chapters within the Praxis Earth & Space Sciences - Content Knowledge (5571): Practice & Study Guide course
- Praxis Earth & Space Sciences: Scientific Research Methods & Tools
- Praxis Earth & Space Sciences: Data Collection & Analysis
- Science Education Safety
- Praxis Earth & Space Sciences: Technology of Ocean & Space Science
- Praxis Earth & Space Sciences: Properties of Matter
- Praxis Earth & Space Sciences: Principles of Energy
- Praxis Earth & Space Sciences: Biological, Physical & Chemical Processes
- Praxis Earth & Space Sciences: Science, Technology & Society
- Praxis Earth & Space Sciences: Energy Sources
- Praxis Earth & Space Sciences: Earth Resources
- Praxis Earth & Space Sciences: Plate Tectonics
- Praxis Earth & Space Sciences: Rock Deformation and Mountain Building
- Praxis Earth & Space Sciences: Earth's Spheres and Internal Structure
- Praxis Earth & Space Sciences: Earthquakes
- Praxis Earth & Space Sciences: Volcanoes
- Praxis Earth & Space Sciences: Minerals and Rocks
- Praxis Earth & Space Sciences: Weathering, Soil & Waste
- Praxis Earth & Space Sciences: Earth History & Life Forms
- Praxis Earth & Space Sciences: Weather Systems & Meteorology
- Praxis Earth & Space Sciences: Weather and Storms
- Praxis Earth & Space Sciences: Natural Phenomena & the Earth's Climate
- Praxis Earth & Space Sciences: Surface & Groundwater
- Praxis Earth & Space Sciences: Glaciers & Oceans
- Praxis Earth & Space Sciences: Sun-Earth-Moon System
- Praxis Earth & Space Sciences: Earth & the Solar System
- Praxis Earth & Space Sciences: Galaxies & the Universe
- Praxis Earth and Space Sciences: Content Knowledge Flashcards