What is Circadian Rhythm? - Definition & Explanation

Instructions:

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question 1 of 3

The circadian rhythm is a cycle based on a _____ time period.

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1. The circadian rhythm is controlled by a group of cells in the _____.

2. The hormone that is secreted to help with sleep is called _____.

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About This Quiz & Worksheet

Circadian rhythm, probably better known as your internal clock, regulates patterns of sleeping and waking. This quiz/worksheet combo will help you test your understanding of the characteristics of circadian rhythm. Some things you'll be assessed on include what period of time the circadian rhythm is based on, where circadian rhythm is located, and the hormone that helps with sleep.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Body part responsible for circadian rhythm
  • How artificial light affects sleep
  • Identify what can throw off your circadian rhythm
  • Identify whether or not it is best to keep your room completely dark to get the best sleep possible

Skills Practiced

  • Information recall - access the knowledge you've gained regarding circadian rhythm
  • Knowledge application - use your knowledge to answer questions about the characteristics of circadian rhythm, and how it affects the sleep cycle
  • Interpreting information - verify that you can read information on circadian rhythm and interpret it correctly

Additional Learning

To learn more about the sleep cycle, review the accompanying lesson called What is Circadian Rhythm? - Definition & Explanation. This lesson covers the following topics:

  • Your internal clock
  • Interruptions to circadian rhythm
  • Consequences of continued disruption of the circadian rhythm
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