About This Chapter
ASVAB: Geology - Chapter Summary
You'll see major geology material presented to you in this chapter through engaging videos and text lessons. The following ASVAB prep topics are thoroughly covered by our professional instructors:
- The rock cycle and different types of rocks
- Earth's internal and external forces, tectonic plates and plate boundaries
- Volcanoes, mountain-building processes and earthquakes
- The causes of tectonic plate movement
- Minerals and how they're different from rocks
- Earth's internal layers
- Types of mechanical weathering
- Seafloor spreading and polar reversal
Each of this chapter's lively, animated videos highlights one of the above topics. Study the short video lessons for a fun and efficient approach to increase your understanding. Experts can answer your questions when you submit them interactively.
Objectives of the ASVAB: Geology Chapter
The goal of the ASVAB is to determine whether the examinee is suited for military enlistment based on knowledge across multiple subject domains. What you learn in this chapter about geology will be helpful for the ASVAB General Science (GS) subtest items. The GS subtest accounts for about 11% of the exam's questions overall on the computer format as well as the paper version. The computer-based test includes 16 questions and has an 8-minute time limit while the paper-based test features 25 questions that should be completed in 11 minutes.
1. The Dynamic Earth: Internal & External Forces that Shape Earth's Surface
There are many geologic processes that shape the surface of the Earth. Not only do they build and destroy a variety of landscapes, but they also give us clues to the interior of the Earth and the forces that exist there.
2. Earth's Internal Layers: Crust, Mantle & Core
Earth is made up of several different layers, each with unique properties. In this video lesson, you will identify each layer of Earth and how it relates to Earth as a whole.
3. Earthquakes and Volcanoes: Evidence of Earth's Inner Layers
The interior layers of the earth are not able to be observed directly, so scientists need to rely on other information to learn about it. S waves, P waves, and magma from volcanoes and earthquakes give a glimpse at the layers of the earth by providing data that can be built into a model of the earth.
4. The Processes of Mountain Building
In this video lesson, you will learn about the process of mountain building. You will identify different ways that mountains form, as well as the different types of mountains that result from this process.
5. 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.
6. Sea Floor Spreading and Polar Reversal
Sea floor spreading is the process by which new oceanic crust is formed by the upwelling of magma through diverging tectonic plates. Learn about the relationship between sea floor spreading and polar reversals detected on the ocean floor.
7. Plate Tectonics: A Unified Theory for Change of the Earth's Surface
After many years of trying to solve the mystery of the moving continents, enough data and evidence was collected to develop a unifying theory of how the surface of the earth changes. It's called plate tectonics.
8. Major Plates of the Lithosphere: Earth's Tectonic Plates
The outer shell of the earth, the lithosphere, is broken up into tectonic plates. The seven major plates are the African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate.
9. Plate Boundaries: Convergent, Divergent, and Transform Boundaries
In the theory of plate tectonics, the earth's crust is broken into plates that move around relative to each other. As a result of this movement, three types of plate boundaries are formed: divergent, convergent, and transform boundaries.
10. Causes of Tectonic Plate Movement
In this lesson, we explore the causes of plate movement, including thermal convection, ridge push and slab pull. Students will learn how these processes complement each other and form a theory for tectonic plate movement.
11. What Are Minerals? - Types, Properties & Examples
In this lesson, you will learn about minerals and their properties. You will also understand the importance and everyday use of different types of minerals found on Earth.
12. Rocks and Minerals: Definitions and Differences
Can you tell the difference between a rock and a mineral? What makes a mineral so much different from a rock? Explore these questions in depth, and learn how we classify rocks and minerals.
13. Rock Cycle: Igneous, Sedimentary, and Metamorphic Rocks
In this lesson, we will discuss the three main types of rocks and how they are formed. The lesson also gives an introduction into how matter locked in rocks can be cycled through the earth.
14. Types of Rocks: The Three Major Rock Groups
Did you know that lava is molten rock that reaches the earth's surface? Furthermore, did you know that rocks exist in three general forms: igneous, sedimentary and metamorphic? This lesson describes these rock types and examples of each.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the ASVAB Armed Services Vocational Aptitude Battery: Practice & Study Guide course
- ASVAB: Cell Biology
- ASVAB: Respiration & Photosynthesis
- ASVAB: Cell Division
- ASVAB: Genetics
- ASVAB: Evolution
- ASVAB: Classification
- ASVAB: Plant Biology
- ASVAB: Animal Biology
- ASVAB: Nutrition
- ASVAB: The Human Digestive System
- ASVAB: The Human Respiratory & Circulatory Systems
- ASVAB: The Human Excretory System
- ASVAB: The Human Endocrine System
- ASVAB: The Human Nervous System
- ASVAB: Human Reproduction
- ASVAB: Ecology
- ASVAB: Matter & Atomic Structure
- ASVAB: The Periodic Table
- ASVAB: Chemical Reactions & Bonding
- ASVAB: Measurement
- ASVAB: Nuclear Chemistry
- ASVAB: Motion
- ASVAB: Force
- ASVAB: Energy & Work
- ASVAB: Fluids
- ASVAB: Waves & Sound
- ASVAB: Meteorology
- ASVAB: Oceanography
- ASVAB: Astronomy
- ASVAB: Understanding Words & Context
- ASVAB: Paragraph Comprehension
- ASVAB: Numbers
- ASVAB: Mathematical Operations
- ASVAB: Math Word Problems
- ASVAB: Numbers & Operations
- ASVAB: Fractions
- ASVAB: Basic Expressions
- ASVAB: Solving Equations
- ASVAB: Exponents
- ASVAB: Polynomials
- ASVAB: Geometry & Algebra
- ASVAB: Electric Force & Charge
- ASVAB: Magnetism
- ASVAB: Electric Circuits
- ASVAB: Power, Devices & Computers
- ASVAB: Mechanical Comprehension
- ASVAB: Assembling Objects
- ASVAB Armed Services Vocational Aptitude Battery Flashcards