About This Chapter
1. What is a Continent? - Definition & Explanation
At some point in your elementary school career, you were likely taught that the earth has seven continents. But, geologically, the situation is a bit more complicated. Learn how our continents formed, and why, in this lesson.
2. What is a Desert? - Definition & Facts
Do you know what a desert is? Did you know that a desert can be extremely cold and covered in snow? Read on to learn more fascinating facts about Earth's driest ecosystem.
3. What is a Map Key/Legend? - Definition, Symbols & Examples
Learn about maps and map keys/legends. Understand why map keys are essential to understanding maps, and see some examples of the importance of map keys.
4. What is a Mountain Range? - Definition & Explanation
Explore mountain ranges from the Himalayas in Asia to the Appalachians in North America. Learn about how mountain ranges are organized into larger groupings called mountain belts. After the lesson, test yourself with a quiz.
5. What is a Plateau? - Definition & Explanation
You can't spell 'plateau' without 'plate,' and there is a good reason for that - both of these objects are, by definition, flat. This lesson will further explain the definition of plateau and discuss some different types of these flat landforms.
6. What is Carbon Dating? - Definition & Overview
Ever wondered how scientists know the age of old bones in an ancient site or how old a scrap of linen is? The technique used is called carbon dating, and in this lesson we will learn what this is and how it is used. A quiz will test how much we have learned.
7. What is Geology? - Definition, History, Facts & Topics
Did you know Earth is over 4.5 billion years old? Did you also know that the continents move and have joined together to create supercontinents? Learn about geology, what it is, its history and some interesting facts.
8. What is Latitude? - Definition, Calculation & Examples
In this lesson, you will learn what latitude is and the general principles behind how it can be calculated. You'll also be provided with some examples of latitudes around the world. A short quiz will follow.
9. Batholith: Definition & Formation
Red-hot giants form deep within the Earth's crust -- you could be living on top of a former one right now. In this lesson you will read about the huge igneous formations known as batholiths and how they form.
10. Faults: Definition & Types
Faults - everyone has them, even our planet. But what are geologic faults? And why does our planet have so many? Let's explore the answers to these questions in this lesson.
11. Felsic: Definition & Composition
In this lesson, you will read about felsic rocks and find out what they're made of - their name gives clues to their composition. You'll also take a quiz to test your understanding.
12. Geologic Features: Overview
Geologic features are all around us, on the earth's surface and beneath our feet, and they are part of the landscape. In this lesson, learn more about geologic features, and then test your knowledge with a quiz.
13. Geyser: Definition & Explanation
Learn about how geysers like Old Faithful create spectacular explosions of water and steam. Explore geysers from Yellowstone National Park to Iceland to the ocean floor deep under the Pacific Ocean.
14. Glacial Moraine: Definition & Overview
This lesson will explain what glacial moraine is, and describe the various types of glacial moraine, both those that remain after a glacier recedes and those that don't. A short quiz will follow.
15. Lakes: Definition & Facts
Learn about the different types of lakes, from glacier lakes to oxbow lakes, and how they are formed. Explore how lakes are part of every ecosystem and found on every continent.
16. Landform: Definition & Types
Read about landforms and their major features. Learn the differences between formations like mountains and hills, valleys and canyons. (Hint: It has to do with their form.)
17. Mantle Plume: Definition & Explanation
Exactly what a mantle plume is and whether such things even exist, is not certain. Yet, they are proposed as an explanation for many volcanic features. You'll learn what geologists think they are in this lesson.
18. Mid-Atlantic Ridge: Definition & Explanation
Oceanographers knew the Mid-Atlantic Ridge existed for decades before they found an answer to one burning question: Why was there a 7700 foot high mountain range at the bottom of the Atlantic? Now you can discover the answer in this lesson.
19. Mountain: Definition, Formation, Characteristics & Examples
This lesson will explain how a mountain is defined, how mountains are formed, and their characteristics, as well as discuss some of the most famous or significant mountains. A short quiz will follow.
20. Phagocytosis: Definition, Process & Types
Phagocytosis is the process by which a cell engulfs material either to destroy it, to feed on it, or to get information from it. Learn how important this process is to your own immune system.
21. Rivers: Definition & Explanation
Explore rivers and how they develop from small streams to swiftly flowing rapids. Learn about how rivers shape the land around them, creating canyons, flood plains and deltas.
22. The Mississippi River: Facts, History & Location
You may have learned that the Mississippi River is the fourth longest river in the world. It also supplies water for millions of people and wildlife. Learn more interesting facts about this important American waterway in this lesson.
23. Valley: Definition & Examples
Explore the types of valleys created by erosion and the shifting of the earth's plates. Learn about the different shapes valleys can take, from steep river canyons to wide glacier valleys.
24. Where Is the Redwood Forest? - Location, Facts & History
It takes some tiny seeds hundreds of years to become the tallest living things on the planet. Learn about the redwood forest and where you can see these giants today; take a quiz to check your understanding.
25. Yellowstone National Park: Facts, Location & History
Yellowstone National Park is America's oldest and is truly a jewel, containing mountain beauty, geothermal features, and abundant wildlife. Read on to find out more about this unique part of the American west. A short quiz is provided.
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