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Ch 18: TASC Science: Earth Materials & Systems

About This Chapter

Study this chapter to be able to correctly answer TASC Science test items dealing with Earth materials and systems. Explore these topics by watching fun videos and going through the chapter's text.

TASC Science: Earth Materials & Systems - Chapter Summary

Learn about Earth's layers, including the crust, mantle and core, to increase your TASC Science test readiness. The chapter's lessons also take you through these other principle topics involving Earth materials and systems:

  • Forces that shape the surface of the Earth
  • Erosion and deposition
  • Causes of mass wasting
  • Types of waves and their effect on erosion
  • Beach drift and longshore current
  • Earth's internal layers
  • Ways of studying the Earth's interior structure
  • Earthquakes and volcanoes
  • Historical factors of climate change

The videos for these topics are brief yet comprehensive and leave you with a better understanding of the material. The info you read in the text transcripts can further reinforce what you take in from the videos.

Objectives of the TASC Science: Earth Materials & Systems Chapter

The TASC Science test is concerned with seeing if your subject knowledge corresponds with high school equivalency standards. Your grasp of Earth's systems will be checked in the test's Earth and space sciences content area, which makes up 28% of the exam. The TASC Science exam has roughly 58 questions overall, with the vast majority being multiple choice. Try the multiple-choice quizzes in this Earth Materials & Systems chapter for useful practice.

9 Lessons in Chapter 18: TASC Science: Earth Materials & Systems
Test your knowledge with a 30-question chapter practice test
The Dynamic Earth: Internal & External Forces that Shape Earth's Surface

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.

Effect of Erosion and Deposition on Landforms

2. Effect of Erosion and Deposition on Landforms

Landforms are constantly being broken down and reformed by the processes of weathering, erosion, and deposition. In this lesson, we explore chemical and physical weathering and how the face of the earth gets changed.

Mass Wasting: Definition, Types, Causes & Processes

3. Mass Wasting: Definition, Types, Causes & Processes

Mass wasting or mass movement is the movement of a large mass of rock, soil and debris downward due to the pull of gravity. Learn about the process of mass wasting, the factors that must be present to trigger it and the different types.

Waves: Types, Features & Effect on Erosion

4. Waves: Types, Features & Effect on Erosion

There are different types of ocean waves, including wind waves, tsunamis and tidal waves. Learn the features of waves and how their erosive effect creates the unique features found on the shoreline.

Contributing Factors of Longshore Transport: Beach Drift & Longshore Current

5. Contributing Factors of Longshore Transport: Beach Drift & Longshore Current

The longshore transport is the process responsible for the movement of sand and sediment along the coastline. Sand and other particles are transported with the help of the longshore current and beach drift. Learn how these factors shape shorelines.

Earth's Internal Layers: Crust, Mantle & Core

6. 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.

How Scientists Study Earth's Interior Structure

7. How Scientists Study Earth's Interior Structure

We can't see what Earth's interior is made of, but scientists are able to study it in other ways. In this video lesson, you will learn how seismic activity helps us understand and describe the inner layers of the earth.

Earthquakes and Volcanoes: Evidence of Earth's Inner Layers

8. 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.

Historical Factors of Climate Change

9. Historical Factors of Climate Change

Earth's climate has begun to drastically change during our lifetimes. This lesson delves into some of the causes and science of this recent climatic shift.

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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