Comparing the Size of the Earth to Other Planets
Activity 3 Worksheet

Circle the the size symbol that best describes the size of the Earth compared to the planet you are measuring. 
Earth <  =  > 

almost 


 

Planet Name 

Earth <  =  > 

almost 


 

Planet Name 

Earth <  =  > 

almost 


 

Planet Name 

Earth <  =  > 

almost 


 

Planet Name 

Earth > 

almost 


 

Planet Name 

Earth > 

almost 


 

Planet Name 

Earth > 

almost 


 

Planet Name 

Earth =  > 

almost


 

Planet Name 

  

PART A:
Complete the table above. 

PART B:
Name of the planet that is always largest. _______________.

Name of the planet that is always the smallest. _____________. 

Name of planets that are sometimes large and sometimes small. ____________________________. 

PART C:
Why are most planets sometimes large and sometimes small?
Are the largest and smallest planets ALWAYS the largest and smallest planets?
Why? 

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