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