Across
- 9. in a fluid that results from convection
- 10. elongate elevation on an ocean bottom
- 13. and rock between the crust and the core
- 14. hypothetical supercontinent
- 15. wave produced by an earthquake or other means
Down
- 1. of new areas of oceanic crust
- 2. or decrease of frequency of sound, light, or other waves as the source and observer move towards or away from each other
- 3. feature that exists between two tectonic plates that are moving away from each other
- 4. theory of how the universe was created
- 5. known as a destructive plate boundary
- 6. surrounding the Earth where it's magnetic field is the predominant effective magnetic field
- 7. star where no hydrogen is left in the core to feul nuclear fusion
- 8. tectonic plate slides under another plate at a subduction zone
- 11. force that attracts smaller massed objects to an object with a large mass
- 12. constituents of matter and are organized by a periodic table