Geology
Artist's concept of a human exploring the surface of Mars

One day, astronauts will travel to Mars and collect rock samples to learn more about the planet's history. Image Credit: NASA

      the study of a planet's layers of soil and rock



Sentences:
NASA's rovers are helping us learn more about the geology of Mars.

My brother wants to study the geology of the Grand Canyon when he is older.



More Information:
http://astroventure.arc.nasa.gov/geology/training/index.html   →