Across
- 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
- 3. Im the liquidy center
- 9. boundary when two plates come together
- 11. waves vibrations in the earth that transmit energy and occur during seismic activity such as earthquakes, volcanic eruptions, and even man-made explosions
- 12. Boundary formed where two tectonic plates pass laterally by one another.
- 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.
- 18. core I'm the solid part in the middle of the earth
- 19. I'm the rigid outer part of the earth, consisting of the crust and upper mantle.
- 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
- 2. Current heat-driven cycles that occur in the air, ocean, and mantle
- 4. decay the emission of energy in the form of ionizing radiation
- 5. isotope my mom decayed to make me
- 6. plates I'm the thing that floats on the mantle and the convection currents make me move
- 7. crust the brittle surface of earth
- 8. region of the upper atmosphere between about 50 and 80 km (30 and 50 miles) above the surface of the Earth
- 10. boundary occurs when two tectonic plates move away from each other
- 13. isotope I decays to make a daughter
- 15. I'm the layer under the crust
- 16. any fairly small natural object from interplanetary space
- 17. crust brittle crust covered by water