Module 2 Vocabulary

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Across
  1. 4. a method of aging which gauges the number of years that something has existed
  2. 5. using oxygen
  3. 9. without oxygen
  4. 10. the study of magnets and magnetic fields that are located within the earth
  5. 12. two tectonic plates moving towards each other
  6. 13. two tectonic plates moving away from each other
  7. 15. the study of earthquakes
  8. 16. the concept of the Earths systems evolving alongside life on Earth
  9. 19. Forces that weather or remove the Earth
  10. 20. without life
Down
  1. 1. The time it takes for a radioactive isotope to decay by half of the original mass
  2. 2. two tectonic plates sliding past each other
  3. 3. the representation of natural or artificial landforms on a map
  4. 6. a method of aging that can be used to create a timeline of which things are older than others
  5. 7. The movement of liquid caused by hot liquids rising and cold liquids sinking
  6. 8. to remove; usually in reference to tectonic plates
  7. 11. a variant of an element with a number of neutrons that is different from normal
  8. 14. Forces that build up the Earth
  9. 17. with life
  10. 18. the process in which a radioactive atom gives off radiation in order to gain stability