What is Coastal Erosion? - Definition & Causes


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Use the clue to help you identify the type of coastal erosion:

Waves hit a cliff, and the air within the rocks making up the cliff is compressed, thus weakening the rocks. The rocks fall off the cliff and into the ocean.

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Use the clue to help you identify the type of coastal erosion:

Rocks act like sandpaper, grinding down the coastline.


Use the clue to help you identify the type of coastal erosion:

Acidic seawater dissolves some of the rocks making up a coastline, thus eroding it.

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About This Quiz & Worksheet

Coastal erosion is a serious issue which many Americans are currently dealing with. See what you know about it by answering quiz questions on subjects like a specific type of coastal erosion where waves are hitting a cliff and one where rocks are influencing the coast.

Quiz & Worksheet Goals

These concepts will be covered on the quiz/worksheet:

  • Seawater affecting the coastline
  • Three types of coastal erosion
  • Coastal erosion in Kivalina

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the related lesson on coastal erosion facts
  • Information recall - access the knowledge you've gained regarding what is happening with regard to the coastal erosion in Kivalina
  • Knowledge application - use your knowledge to answer questions on the types of coastal erosion
  • Making connections - use understanding of the concept of various types of coastal erosion and how it's connected to ocean waves and rocks

Additional Learning

Learn more about how the coastline of the U.S. and other areas of the world are eroding with the lesson called What is Coastal Erosion? - Definition & Causes. These areas of study will be discussed:

  • The fact that many communities around the world are experiencing coastal erosion
  • Characteristics of the various coastal erosion types
  • An abbreviation to help you remember them by