Planet Mars: Compare & Contrast Activity
Updated February 21, 2017 | Factmonster Staff 
Examining a primary source
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Scientists believe there may have been life on Mars based on the fact that both Mars and Earth have similar origins and structures, not to mention the presence of water. (Watch our video on the planet Mars to find out more.)
Directions:
Look at the fact pages on Mars and Earth. Notice the similarities and differences between the two planets. How are they alike? How are they different?
Similarities
Differences
See also:
