Lessons 4-6

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Across
  1. 2. an interval of time within the ice age that is marked by colder temperature and glacier advances.
  2. 3. study of the flow of matter primarily in the liquid state under conditions.
  3. 4. study of ancient magnetic fields.
  4. 6. largest layer of the earth.
  5. 7. circulating current.
  6. 9. outer solid part of the planet including earth's crust.
  7. 10. can be found in the deepest region of the planet.
  8. 11. This theory was proposed by Arthur Holmes in 1929.
  9. 12. is regarded as the most important theory ever developed in the field of geology.
  10. 13. study of the climatic conditions of past geologic ages.
  11. 15. heat can be transferred from one place to another through a process.
Down
  1. 1. period characterized by warmer climates within the ice age.
  2. 5. He attributed the supercontinent breakup during the time of Noah.
  3. 8. highly viscous layer which lies between the crust and the lower mantle.
  4. 14. outermost layer of the earth.