What is a Main Sequence Star?


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

question 1 of 3

A baby star is a:

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1. An adult star is:

2. Our sun produces energy by way of:

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About This Quiz & Worksheet

Main sequence stars are stars that fall into the main sequence on the Hertzsprung-Russell diagram. This quiz/worksheet combo will help you test your understanding of these stars. Some things you'll be assessed on include the terms for a baby star and an adult star and how our sun produces energy.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Terms for baby and adult stars
  • How our sun produces energy
  • What our sun will run out of and what it will subsequently become
  • Which type of star dies the fastest

Skills Practiced

  • Information recall - access the knowledge you've gained regarding how our sun produces energy
  • Knowledge application - use your knowledge to answer questions about baby and adult stars
  • Interpreting information - verify that you can read information on what happens to older stars and interpret it correctly

Additional Learning

To learn more about the luminosity and different types of stars, review the accompanying lesson titled What is a Main Sequence Star? This lesson covers the following topics:

  • The Hertzsprung-Russell diagram
  • Protostars and nuclear fusion
  • Mass and lifespan of main sequence stars