Earth History

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Across
  1. 1. a theory that says that changes in the earth happen in sudden and dramatic ways
  2. 6. a type of fossil that leaves the organism intact
  3. 7. plate tectonics explains how the __________ moves
  4. 8. a type of fossil that appears when a organic material is compressed, leaving only a film
  5. 9. a type of fossil that shows the general form of the original organism
  6. 11. a type of fossil that is created when mineral rich water enters an organism and creates a replica of the organism
  7. 12. the ______________ contains all of the water on earth and in the atmosphere
  8. 13. a type of fossil that shows the impression of the organism
Down
  1. 1. the law of _____________ of mass says that the mass of the reactants must equal the mass of the products
  2. 2. a type of fossil that shows the activity of an organism
  3. 3. uniformitarianism is a theory that says changes in the earth happen __________
  4. 4. the law of ______________ says that older rock layers are on the bottom and younger layers are on the top
  5. 5. continental _______ is the theory of how the land masses of the earth have moved throughout geologic time
  6. 10. a type of fossil used to estimate the age of different layers of sedimentary rock