Barrier Islands: Formation, Shape & Location


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What are barrier islands?

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1. Which of the following describes the spit accretion theory?

2. Which of the following is a reason barrier islands are important for coastal geology?

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About This Quiz & Worksheet

This quiz/worksheet combo will help you review how barrier islands are formed and what function they serve. Questions will focus on specific theories as well as different benefits barrier islands give.

Quiz & Worksheet Goals

In these questions you'll test your understanding of:

  • What barrier islands are
  • How the spit accretion theory works
  • Why barrier islands are important for coastal geology

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the material, including things that can lead to an increase in the size of barrier islands
  • Defining key concepts - ensure that you can accurately define main phrases, such as the spit accretion theory
  • Knowledge application - use your knowledge to answer questions about why accretion is so important for barrier islands

Additional Learning

Get a deeper understanding of these types of islands with the lesson titled Barrier Islands: Formation, Shape & Location. It will help you understand things like:

  • Why estuaries and lagoons are essential to some types of sea life
  • What the offshore bar theory proposed
  • How the submergence theory describes the formation of barrier islands