About This Chapter
Ocean Water, Currents, Tides & Waves - Chapter Summary
Get reacquainted with the basics of ocean water, currents, tides and waves with help from our engaging video lessons. This chapter closely examines and can ensure you fully understand global pressure distribution, tsunamis, beaches and much more. Upon completion of this chapter, you will be able to:
- Identify and discuss the physical and chemical properties of ocean water
- Explain how ocean and continents influence global pressure distribution
- List factors that impact ocean and general atmospheric distribution
- Define and list types of ocean currents
- Discuss the features of waves and their effect on erosion
- Share causes and effects of tides and tsunamis
- Outline unique characteristics of beaches and shorelines
Explore the lessons in this chapter in your format of choice -- short videos or full transcripts -- based on your personal study preferences. The videos average 8 minutes each and feature clickable timelines that let you skip to key topics with ease, while transcripts offer a text version of the lessons you can read online or print. As you progress through the lessons, feel free to submit any questions that arise about lesson topics to our subject-matter experts. Mini quizzes and a practice exam are available to make sure you have a complete understanding of ocean water, currents, tides and waves before taking your test.
1. Properties of Ocean Water
Ocean waters are salty and contain minerals and dissolved gases. They also have a high heat capacity and vary in density depending on temperature and salinity. Learn more about the unique chemical and physical properties of ocean water.
2. How Continents & Oceans Influence Global Pressure Distribution
The movement of air in Earth's atmosphere is driven by several variables, including differences in pressure. Here we will examine how the presence of land and ocean affect differences in pressure, followed by a brief quiz to test your knowledge.
3. Oceanic & General Atmospheric Circulation
The movement of air and water across the planet is the driving force of climate and weather patterns. There are many factors that affect ocean and atmospheric circulation, and here we will explore what they are and how they function. At the end, you can test your knowledge with a brief quiz.
4. What are Ocean Currents? - Definition & Types
Currents are responsible for circulating water throughout the earth's oceans. This lesson will discuss surface ocean currents, deep water ocean currents, and the forces that drive them.
5. 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.
6. 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.
7. The Causes & Effects of a Tsunami
A tsunami is a powerful series of waves that result due to an abrupt disturbance, such as an earthquake. Learn how tsunamis form and grow and discover the devastating effects they can have on people and the environment.
8. Characteristics of Shorelines & Beaches
Shorelines and beaches are constantly changing due to forces, such as waves, winds and currents. Learn about characteristics of shorelines, including headlands, bays, beach berms, sand dunes, spits, tombolos, barrier islands and lagoons.
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