plate tectonics
Across
- 2. ‐ Part of a grid used for describing positions on earth’s surface, consisting of parallel circles
- 4. Zone ‐ An area where oceanic crust and continental crust are colliding.
- 7. ‐ The point of origin of an earthquake
- 8. ‐ The thick shell of dense, rocky matter that surrounds the earth’s core.
- 9. Core ‐The innermost layer of the earth, an extremely hot, solid sphere of mostly iron and nickel
- 10. Core ‐ This layer of the earth lies between the mantle and the solid inner core.
- 11. ‐A dropped zone where two tectonic plates are pulling apart
Down
- 1. ‐ A deep valley that forms at the edge of a continent when an oceanic plate sinks underneath a
- 3. Scale ‐ A logarithmic scale, ranging from 1 to 10, for indicating the intensity of an earthquake
- 5. plate.
- 6. ‐ Any of various instruments for measuring and recording the vibrations of earthquakes