earth crossword

1234567891011121314151617181920
Across
  1. 1. Dating Radiometric dating calculates an age in years for geologic materials by measuring the presence of a short-life radioactive element, e.g., carbon-14, or a long-life radioactive element plus its decay product
  2. 3. Im the liquidy center
  3. 9. boundary when two plates come together
  4. 11. waves vibrations in the earth that transmit energy and occur during seismic activity such as earthquakes, volcanic eruptions, and even man-made explosions
  5. 12. Boundary formed where two tectonic plates pass laterally by one another.
  6. 14. I'm the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
  7. 18. core I'm the solid part in the middle of the earth
  8. 19. I'm the rigid outer part of the earth, consisting of the crust and upper mantle.
  9. 20. read carefully (;In nuclear and particle physics, a geoneutrino is a neutrino or antineutrino emitted during the decay of naturally-occurring radionuclides in the Earth
Down
  1. 2. Current heat-driven cycles that occur in the air, ocean, and mantle
  2. 4. decay the emission of energy in the form of ionizing radiation
  3. 5. isotope my mom decayed to make me
  4. 6. plates I'm the thing that floats on the mantle and the convection currents make me move
  5. 7. crust the brittle surface of earth
  6. 8. region of the upper atmosphere between about 50 and 80 km (30 and 50 miles) above the surface of the Earth
  7. 10. boundary occurs when two tectonic plates move away from each other
  8. 13. isotope I decays to make a daughter
  9. 15. I'm the layer under the crust
  10. 16. any fairly small natural object from interplanetary space
  11. 17. crust brittle crust covered by water