Across
- 2. A method or device for detecting and locating objects especially underwater
- 4. Preserved remains or traces of remains of ancient organisms
- 5. Any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum ocean depths
- 6. A flow of electrical charge, usually electrons or electron-deficient atoms
- 8. An elevated region with a central valley on an ocean floor
- 10. A map that indicates the features of the land's surface
- 13. The action in plate tectonics of the edge of one crustal plate descending below the edge of another
- 14. Tectonic plates spreading apart underwater
Down
- 1. Process by which heat is transferred by movement of a heated fluid like air or water
- 3. The hypothesis that continents were once a supercontinent
- 7. The name of the geologic supercontinent
- 9. A measure of the amount of matter in an object
- 11. The amount of space occupied by a substance
- 12. A substances mass per unit Volume