Discuss each question with your team. Be prepared to explain the reasoning behind your team's answers after the quiz.

1. What are the majority of asteroids made of?
   • Carbon
   • Silica
   • Iron
   • Ice and dust
   • Very small rocks
2. Which of the following statements is FALSE?
   • Most of the asteroids in the Solar System are found between Jupiter and Neptune's orbits.
   • Some asteroids cross Earth's orbit.
   • An asteroid's right ascension and declination are constantly changing.
   • Asteroids shine by reflected sunlight.
3. Why are there fewer impact craters on Earth than on other bodies like the Moon or Mercury?
   • Earth's atmosphere causes most objects to burn up
   • Most objects that reach the surface land in the ocean
   • Craters on Earth are destroyed and hidden by geological processes
   • NASA launches missions to destroy impactors before they reach the surface
4. Which two properties of an impacting object have the greatest effect on the amount of energy released by the impact?
   • Mass and impact velocity
   • Diameter and density
   • Impact angle and density
   • Mass and diameter