About This Chapter
How It Works:
- Identify the lessons in the Harcourt World's Geography chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the world geography topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Plate tectonics, continental drift and volcanoes
- Erosion and deposition of landforms
- Human adaptation to environments
- Oceans, seas and gulfs
- The water cycle and tides
- Lakes and rivers of the U.S.
- Climate classifications and regional factors
- IPAT and human impact on the environment
- Declining biodiversity, desertification and deforestation
- Human migration
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1. 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.
2. Evidence for the Mechanism of Continental Drift
As scientists began to explore the ocean floor after World War II, they discovered many new clues to help them solve a mystery that had begun decades earlier - how the continents moved about on the surface of the earth.
3. What is a Volcano? - Definition & Eruptions
Volcanoes are vents that allow lava, rock fragments and gases to escape from layers beneath the earth's surface. Learn how volcanoes form both on land and underwater and why they erupt.
4. 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.
5. How Humans Adapted to Their Environments
In this lesson, you will explore the impact of early humans on their environments and discover how these first communities survived. Then, test your understanding with a brief quiz.
6. The Earth's Oceans, Seas & Gulfs
After watching this video, you will be able to explain what oceans, seas and gulfs are and point out some of the most well-known ones on a world map. A short quiz will follow.
7. 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.
8. What Are Tides? - Causes & Effects
Tides rise and fall under the influence of the gravitational pull of the moon and sun. Learn about different tides, why they are predictable and their effects on coastal regions of the world.
9. Major Lakes & River Systems in the United States
More than seven percent of the United States is covered in water. In this lesson, we'll identify the major lakes and rivers in the United States and explain where they fit in the United States' geography.
10. Climate Classifications & Their Global Distribution
Earth has many climates, but we can categorize them based on common characteristics. In this video lesson you will identify the 5 major climate classifications on Earth, as well as where on Earth these climates are found.
11. Vegetation Regions: Distinctions, Wildlife & Weather Patterns
Have you ever noticed how different places have different types of plants and weather? In this lesson, you'll learn about the five major vegetation regions in the world and what makes each of them unique.
12. Natural Factors That Determine a Region's Climate
Climate is influenced by factors like atmosphere, ocean currents, landforms and plate tectonics. This lesson explains how these effects affect our weather patterns, which determine climate.
13. What Is IPAT? - Factors of the Human Impact on the Environment
What do the letters IPAT have to do with the environment? Learn how this four-letter equation helps explain the environmental impact of different variables, including population, affluence, and technology.
14. Deforestation, Desertification & Declining Biological Diversity
When trees are lost due to deforestation, the result can be a drier climate and desertification or the transformation of the once fertile land to desert. Learn how deforestation and desertification can lead to a decline in biological diversity.
15. The Migrations of Humans Since 1500
This lesson will explain human migration patterns since the 1500s. In doing so, it will highlight the forced migration, as well as the eras of colonization and persecution, industrialization, and 20th century migration.
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Other chapters within the Harcourt Social Studies - World History: Online Textbook Help course
- Harcourt Social Studies - World History Chapter 2: Early People
- Harcourt Social Studies - World History Chapter 3: The Tigris & Euphrates Valley
- Harcourt Social Studies - World History Chapter 4: The Nile Valley
- Harcourt Social Studies - World History Chapter 5: Asia & the Americas
- Harcourt Social Studies - World History Chapter 6: Southwest Asian Civilizations
- Harcourt Social Studies - World History Chapter 7: Asia's Classical Age
- Harcourt Social Studies - World History Chapter 8: The Ancient Greeks
- Harcourt Social Studies - World History Chapter 9: The Ancient Romans
- Harcourt Social Studies - World History Chapter 10: Europe After the Romans
- Harcourt Social Studies - World History Chapter 11: Africa & Asia
- Harcourt Social Studies - World History Chapter 12: The Americas
- Harcourt Social Studies - World History Chapter 13: New Empires
- Harcourt Social Studies - World History Chapter 14: The Growth of Trade
- Harcourt Social Studies - World History Chapter 15: Europe & the Western Hemisphere
- Harcourt Social Studies - World History Chapter 16: The Eastern Hemisphere
- Harcourt Social Studies - World History Chapter 17: Times of Rapid Change
- Harcourt Social Studies - World History Chapter 18: Times of War & Times of Peace
- Harcourt Social Studies - World History Chapter 19: Global Challenges