Unit #1: Intro to Paleontology Review

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Across
  1. 3. What type of rocks have been reformed by pressure, heat, or water to become more compact and crystalline?
  2. 5. A characteristic of the ____ stage is an increase of temperature and melting ice
  3. 8. Visually breaks down the history of the planet into sections (3 words)
  4. 10. The longest intervals on the geological time scale
  5. 11. Igneous, sedimentary, and metamorphic forms occur in the (2 words)
  6. 12. The process of looking at Earth's history through varying levels of rock strata (2 words)
Down
  1. 1. What is the hypothesis that current geological processes, such as the slow erosion of a coast under the impact of waves, have been occurring in a similar manner throughout Earth's history?
  2. 2. What is the science that deals with the history of the Earth and its life, especially as recorded in rock?
  3. 4. The study of fossils
  4. 6. The hypothesis that current geological processes, such as the slow erosion of a coast under the impact of waves, have been occurring in a similar manner throughout Earth's history
  5. 7. During which eon did invertebrates begin to populate the earth? (2 words)
  6. 9. What is the term for the wearing away of land or soil by the action of wind, water, or ice?