Read and circle the correct word. As a planetary geologist, Bethany Ehlmann studies our solar system. She
wonders / leads to how the rocks on Mars were formed and how they interacted
with water. She also is looking for degrees / proof that life could have been or could be
present on the Red Planet. She works closely with Curiosity, a six-wheeled robot called
a rover. Rovers can move around and explore. Curiosity travels through the plains
and valleys / aspects on the surface of Mars. It uses scientific
dust / instruments to analyze the Martian proof / landscape.
Bethany hopes that Curiosity's work, combined with new
technological advances, will one day provide the answer to the
fundamental / satellite question: Is there life beyond Earth?