High School Vocab ESS2.2

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Across
  1. 6. Evidence of past collisions on planetary surfaces
  2. 9. Extraterrestrial objects that reach Earth's surface
  3. 11. Outer layers of planets, including earth
Down
  1. 1. The most ancient minerals found on Earth
  2. 2. Rocks collected from the Moon's surface
  3. 3. Collection of celestial bodies, including the sun and planets
  4. 4. Process of how Earth came into existence
  5. 5. Determining the age of rocks or minerals using radioactive decay
  6. 7. Substances from Earth's distant past
  7. 8. The makeup or chemical structure of materials
  8. 10. The precise age of geological event or material