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Ch 16: CBASE Science: Basics of Earth Science

About This Chapter

In this CBASE Science refresher course, you will review Earth's geology, structure and physical history. The material presented here provides a well-rounded, inclusive review opportunity for the science section of the CBASE exam.

CBASE Science: Basics of Earth Science - Chapter Summary

In this comprehensive chapter, we help you to evaluate your readiness for the CBASE science exam through a brief but intensive course in geology. The material presented in the lessons is shown in the following list:

  • Theories of how Earth was formed
  • Scale of geologic time
  • The geosphere, hydrosphere, biosphere, and atmosphere
  • Inner composition of Earth: layers and core
  • Plate tectonics, volcanism and earthquakes
  • Plate movement and mountain building
  • Bodies of water and the water cycle
  • Glaciers and their impact on Earth's topography
  • Types of minerals and rocks
  • Climate and weather patterns
  • Impact of climate change and greenhouse gases

By using the timeline feature in our video lessons, you can jump immediately to any section of a lesson that you wish. This enables you to customize your review to your specific needs. Chapter tests and lesson quizzes help you assess your progress, and the dashboard gives you a convenient means of staying on track.

CBASE Science: Basics of Earth Science Objectives

If you intend to enter an undergraduate professional education program, you must take and pass the CBASE exam in order to be admitted. In this CBASE test prep course, you will find an effective means of study that is specifically targeted towards this test.

The science section of the CBASE test is composed of 41 questions. The questions contained in the other subtests bring the total to 180. All are multiple-choice. Of approximately four given responses, you will be required to select the one that best answers the question.

15 Lessons in Chapter 16: CBASE Science: Basics of Earth Science
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.

Geologic Time Scale: Major Eons, Eras, Periods and Epochs

2. Geologic Time Scale: Major Eons, Eras, Periods and Epochs

The geologic time scale is an essential tool for understanding the history of Earth and the evolution of life. In this lesson, explore the principal eons, eras, periods, and epochs that help us track major events in geologic history.

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

3. 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.

Earth's Internal Layers: Crust, Mantle & Core

4. 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.

Earthquakes and Volcanoes: Evidence of Earth's Inner Layers

5. 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.

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

6. 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.

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

7. 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.

The Distribution of Water on Earth

8. 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!

The Water Cycle: Precipitation, Condensation, and Evaporation

9. 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.

What Are Glaciers? - Definition, Types & Processes

10. What Are Glaciers? - Definition, Types & Processes

Learn about the two major types of glaciers: continental and alpine glaciers. These glaciers shape the landscape around them and affect our everyday lives, even if the nearest glacier is thousands of miles away.

Rocks and Minerals: Definitions and Differences

11. 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.

Types of Rocks: The Three Major Rock Groups

12. 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.

Weather vs. Climate: Definition, Differences & Effects

13. Weather vs. Climate: Definition, Differences & Effects

This video lesson will guide you in understanding the difference between climate and weather. Discover how they are different but related and how they are the ways you can describe atmospheric conditions on Earth.

Understanding Weather Fronts: Types & Their Effect on Weather

14. Understanding Weather Fronts: Types & Their Effect on Weather

In this video lesson you will learn about how air masses with different characteristics create weather fronts. You will also identify the different types of fronts, as well as what type of weather occurs along them.

Global Warming: Atmospheric Causes and Effect on Climate

15. Global Warming: Atmospheric Causes and Effect on Climate

Global warming is a multifaceted, complex issue. It involves both natural and human causes that can increase the amount of greenhouse gases. This lesson looks at some of the facts about global warming and how they could contribute to climate change.

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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