Puzzling Earth

123456789101112131415161718
Across
  1. 4. where crust is destroyed as one plate dives under another.
  2. 7. the innermost layer of the Earth
  3. 9. A type of plate boundarie were two tectonic plates slide past each other horizontily
  4. 11. A layer within the Earth within the bettwen the crust and core
  5. 13. A process that involves the movement from one place to another that is coused by difrences in tempriture and density between a liquid or a
  6. 14. Makes up the seafloor of the Earth
  7. 16. The process by which a unstable atomic nucleus loses energy by radiation
  8. 17. The third layer of Earth's atmosphere.
  9. 18. Produces the magnetic field around the earth
Down
  1. 1. the coolest and most rigid part of Earth
  2. 2. A linier feature that exists between two tectonic plates that are moving away from each other
  3. 3. The upper layer of Earth's mantel,below the lithosphere
  4. 5. ontinentalcrust is thickened by the compressive forces related to subduction or continental collision
  5. 6. Amitted during the decay of naturally acurrign RadioNucleids in the earth
  6. 8. An elastic wave produced an earthqueke or other means
  7. 10. A massive, irregular shaped slabs of solid rock within the earth
  8. 12. The first stage is an isotope during radioactive decay
  9. 15. A rock or other matter that has landed on Earth
  10. 16. A technique used to determine the age of materials, such as rocks or fossils.