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Proportions

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• 

  

  Density is a physical property of matter which measures the mass of an object per unit of volume.

  As most stars grow older, the mass remains the same while the radius becomes smaller. What happens to the star’s density as the star ages?

  
  

  The density increases.

  The density decreases.

  The density stays the same.

  The density increases and decreases periodically over time.

  
  
  

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• 

  

  Density is a physical property of matter which measures the mass of an object per unit of volume. As most stars grow older, the mass remains the same while the radius becomes smaller. What happens to the star’s density as the star ages?

  
  

  The density increases.

  The density decreases.

  The density stays the same.

  The density increases and decreases periodically over time.

  
  
  

  Show comments, ratings, and tags.

  How many points should this item be worth?
  You have not completed the item above