What is the Interstellar Medium?

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

These are microscopic solid particles in the interstellar medium:

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1. Stars are born in the:

2. 99% of the interstellar medium is made of:

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About This Quiz & Worksheet

The interstellar medium (ISM) is composed mainly of gasses and very little solid particles. Test your knowledge of the interstellar medium, and the concepts proving it exists, with this interactive quiz and worksheet.

Quiz & Worksheet Goals

In this assessment you'll be asked to:

  • Name the microscopic particles found in the interstellar medium
  • Identify where stars are formed
  • Identify the composition of interstellar medium
  • The fading of light coming from a star due to interference
  • Methods used to detect ISM

Skills Practiced

This quiz and worksheet allows students to test the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on interstellar medium
  • Information recall - access the insight you've gained regarding the components of ISM
  • Knowledge application - use your knowledge to answer questions about the ways interstellar medium is known to exist by scientists

Additional Learning

To learn more about the interstellar medium, review the accompanying lesson called What is the Interstellar Medium? This lesson covers the following objectives:

  • Identify what the interstellar medium is composed of
  • Define spectroscopy
  • Learn that interstellar dust is made of carbon, iron, ice, silicates, and organic compounds
  • Explain the concepts of interstellar extinction, interstellar reddening, and interstellar absorption lines
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