Across
- 4. Trench, the name of the specific deepest place of the all of our ocean
- 6. semisolid layer of Earth which contains convection currents
- 7. an underwater volcano which may break the surface one day.
- 9. the measurement of ocean depths and the charting of the shape or topography of the ocean floor
- 11. sound ranging and navigation
- 12. Zone section between two plates at a mid-ocean ridge where magma emerges
- 14. remote controlled craft which explore the seafloor
- 16. Plains Large, flat, featureless expanses of seafloor
- 17. type of boundary where plates move away from each other
- 18. the transition zone between old continental crust and newer oceanic crust
- 20. the last stage of an island's life in which the surrounding reef is left
- 24. the most dense and innermost layer of Earth
- 25. type of boundary where plates slide past each other
- 26. shelf shallow coastlines around continents
- 28. a break/hole in a tectonic plate where magma creates seamounts/islands
Down
- 1. makes up oceanic crust
- 2. the "newest" Hawaiian island which is still a seamount
- 3. the process/type of zone where plates sink back into the mantle and are recycled
- 5. the last name of the man who came up with the Theory of Plate Tectonics
- 8. slope deep drop in depth and leads to the continental rise
- 10. Ridges long, undersea mountain chains found either side of the rift zone
- 13. the type of data which has to do with past climates
- 15. the supercontinent which broke up
- 19. plate boundary where two plates move toward and crash into each other
- 21. the last name of the man who explained how the continents were moving
- 22. makes up continental crust
- 23. the least dense layer of Earth
- 27. deep ocean formation found at subduction zones