Standard 7: What creates a planetary magnetic field and how is Earth's measured? Also indicate what warning signs we have that Earth's magnetic field is nearing a reversal.
Standard 8: Describe the similarities between the atmospheres of Venus, Earth, and Mars. What evidence do we have from planetary exploration describing Mars' past? What is the leading theory as to what happened to Mars to leave it as it is today?
Standard 9: Describe the unique features of the outer moons of the solar system and compare how their location both relative to the Sun and relative to their parent planet determines key characteristics.