Ch 42: Ohio Graduation Test: Dynamic Earth

About This Chapter

Watch these lessons to improve your knowledge of the origins of the Earth. Use these lessons to prepare for related questions on the science part of the Ohio Graduation Test.

Ohio Graduation Test: Dynamic Earth - Chapter Summary

The lessons of this chapter have been put together to help students like yourself study for the Ohio Graduation Test. In the lessons, our professional instructors will discuss the four spheres of the Earth, and the causes and effects of plate tectonics. After exploring these lessons, you should have a better understanding of:

  • Theories that explain the formation of the Earth
  • Characteristics of the major eras of life on Earth
  • The process of relative dating using fossils
  • The geosphere, hydrosphere, biosphere and atmosphere
  • Internal and external forces that mold the surface of the Earth
  • Alfred Wegener's theory
  • The use of landform diagrams
  • Earthquakes, volcanoes and the Earth's inner layers

Whenever you have a spare moment, but are away from your computer, watch these lessons on your Internet-ready mobile device. Then, read the lesson transcripts to review the material presented in them. Once you have completed a lesson, test how well you understand the information by completing its quiz.

Ohio Graduation Test: Dynamic Earth Chapter Objectives

The Ohio Graduation Test is used to ensure that Ohio high school students know what they need to know to operate in the job market and/or higher education institutions before graduating. When you take this exam, you will be asked to complete a series of 32 multiple-choice questions, four short-answer questions and two extended-response items. Some of these questions will ask you about the Earth and space sciences, including the dynamics and history of the Earth.

10 Lessons in Chapter 42: Ohio Graduation Test: Dynamic Earth
Test your knowledge with a 30-question chapter practice test
Formation of the Earth: Theories

1. Formation of the Earth: Theories

In this lesson, the theory of how the planet Earth formed will be discussed. This includes looking at how it differentiated into three layers, how it formed its atmosphere, water, and land features, and how it continues to evolve today.

The Origin of Life on Earth: Theories and Explanations

2. The Origin of Life on Earth: Theories and Explanations

Ever wonder how living things came from non-living things? We will explore what conditions on early Earth may have created life from non-living items.

The History of Life on Earth: Timeline and Characteristics of Major Eras

3. The History of Life on Earth: Timeline and Characteristics of Major Eras

The Earth is over 4 billion years old. Ever wonder what happened during certain time periods in that large amount of time? We will look at the major eons and eras of Earth's history along with important characteristics of each.

Relative Dating with Fossils: Index Fossils as Indicators of Time

4. Relative Dating with Fossils: Index Fossils as Indicators of Time

You may already know how to date a fossil with a rock. But did you know that we can also date a rock with a fossil? Watch this video to find out how we use index fossils to establish the relative ages of rocks.

The Four Spheres of Earth: Geosphere, Hydrosphere, Biosphere, and Atmosphere

5. The Four Spheres of Earth: Geosphere, Hydrosphere, Biosphere, and Atmosphere

Earth is made up of four distinct yet connect spheres. In this video lesson, you will learn about where each sphere is found on Earth, as well as some features commonly found in each.

The Dynamic Earth: Internal & External Forces that Shape Earth's Surface

6. 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.

Plate Tectonics: A Unified Theory for Change of the Earth's Surface

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.

Alfred Wegener's Theory of Continental Drift

8. Alfred Wegener's Theory of Continental Drift

People used to think that Earth was static, and that it never changed. Gradually, a body of evidence was gathered that made no sense in this model. Alfred Wegener, Geologic Supersleuth, laid the groundwork for a whole new theory for the large-scale changing nature of the earth.

How a Landform Diagram Describes the Geological Progression of a Landscape

9. How a Landform Diagram Describes the Geological Progression of a Landscape

This lesson describes what a landform diagram is. We'll also discuss some basic laws of geology that can help scientists deduce both the order of events that create a landform and the geologic events that occur after a landform's formation.

Earthquakes and Volcanoes: Evidence of Earth's Inner Layers

10. 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.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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