Why Does the Moon have Phases?


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question 1 of 3

How are the phases of the moon explained?

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1. How long is the lunar cycle?

2. When does the third quarter moon occur?

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About This Quiz & Worksheet

Have you ever wondered why the moon appears to change shape? This quiz/worksheet combo will help you test your understanding of the phases of the moon. The quiz questions will test you on the lunar cycle and why we're able to see the moon.

Quiz & Worksheet Goals

These assessments will test you on the following aspects of the moon's phases:

  • The length of a lunar cycle
  • How a lunar cycle is measured
  • When the third quarter moon occurs

Skills Practiced

This quiz and worksheet allows students to test the knowledge gained from the lesson by using the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on the phases of the moon
  • Information recall - access the knowledge you've gained regarding why we are able to see the moon from Earth
  • Knowledge application - use your knowledge to answer questions about the lunar cycle

Additional Learning

To learn more about the causes of the moon's phases, review the accompanying lesson, Why Does the Moon have Phases? The lesson covers the following objectives:

  • Define the phases of the moon
  • Examine the lunar cycle
  • Learn the sequence of the phases of the moon