About This Chapter
Introduction to Geology - Chapter Summary and Learning Objectives
Watch the video lessons included in this chapter to learn what, exactly, geologists study and why. Experienced instructors can show you the processes and best practices for conducting research in the field or in the lab and help you discover the systems approach used to explain interactions between the Earth's land, water, atmosphere and living creatures. By the end of this chapter, you should be able to do the following:
- Define geology and identify its various branches
- List and explain steps in the scientific method
- Describe Earth's subsystems and cycles
|The Main Branches of Geology||Describes the main branches of geology and explains their areas of focus.|
|The Scientific Method: Steps, Terms & Examples||Describes the basic model of how science works in the field and in the laboratory. Lesson content also outlines key stages in this method, including the formulation and testing of a hypothesis. The significance of feedback loops, creativity, intuition and collaboration in scientific discovery is covered as well.|
|Understanding the Systems Approach to Geology||Explains what is meant by a systems approach to geology and uses the concept of cycles to explain how these various systems interact.|
|Earth's 4 Major Geological Subsystems||Identifies four major subsystems of the Earth: lithosphere, hydrosphere, biosphere and atmosphere.|
1. The Main Branches of Geology
Although many people think the field of geology focuses solely on rocks, there is much more behind this scientific field. Geology has many different branches that each focus on interesting and unique features of our planet and beyond.
2. The Scientific Method: Steps, Terms & Examples
The scientific method is more than just hypotheses and experiments. In this lesson, we'll explore the themes and variations that make up the world of science.
3. Understanding the Systems Approach to Geology
Most geological events are influenced by many different factors. Instead of just looking at one factor, the systems approach to geology emphasizes a more holistic approach to understanding the world around us.
4. Earth's 4 Major Geological Subsystems
When we think of the Earth, we mainly think of the physical land we stand on. The Earth system is much more complex and is comprised of four major geological subsystems that interact to carry out many natural processes.
5. Outer Core of the Earth: Definition, Composition & Facts
Learn about the outer core of the earth, including its temperature, composition and state, as well as how the motion of the outer core creates the earth's magnetic field. Then, test your knowledge with a short quiz.
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Other chapters within the Geology 101: Physical Geology course
- Earth Materials
- Mineral Types, Properties and Uses
- Earth and Celestial Rocks
- Igneous Rocks
- Sedimentary Rocks: A Deeper Look
- Metamorphic Rocks: A Deeper Look
- Rock Deformation and Mountain Building
- Weathering and Erosion
- Running Water
- Ground Water
- Deserts and Wind
- Water Balance on Earth
- Geologic Time
- Earth's Spheres and Internal Structure
- Plate Tectonics
- Economic Geology & Mineral Resources
- Studying for Geology 101