Earth Puzzle

12345678910111213141516171819
Across
  1. 2. produced by the radioactive decay of the nuclei of another isotope
  2. 4. when 2 plates come together
  3. 5. a solid piece of debris from an object
  4. 9. waves that travel through or over Earth
  5. 12. pieces of Earth's crust and uppermost mantle
  6. 14. the fourth layer inside the Earth
  7. 15. calculates an age for geologic materials by measuring the amuont of a short-life radioactive element
  8. 16. the mostly-solid bulk of Earth's interior
  9. 18. the upper layer of the earth's mantle, below the lithosphere
  10. 19. a fluid layer composed of mostly iron and nickel that is above Earth's solid inner core
Down
  1. 1. a neutrino emitted in decay of radionuclide naturally occurring in the Earth
  2. 3. the region of the earth's atmosphere above the stratosphere and below the thermosphere
  3. 4. There are 2 types of "Crust" Oceanic and...
  4. 6. places where plates slide sideways past each other
  5. 7. the rigid outer part of the earth, consisting of the crust and upper mantle.
  6. 8. There are 2 types of "Crust" Continental and...
  7. 10. when two tectonic plates move away from each other
  8. 11. a current in a fluid that results from convection.
  9. 13. the Isotope that undergoes decay to form a daughter isotope.
  10. 17. the emission of energy in the form of ionizing radiation