Plate Tectonics Crossword Puzzle by:Katelyn Roberts
Across
- 2. Boundary/ 2 plates slip past each other
- 4. Tectonics/ Pieces of Earth's Lithosphere are in slow, constant motion driven by convection currents
- 5. spreading/ adds new material to the sea floor
- 6. discovered sea-floor spreading
- 7. process by which ocean floor sinks beneath a deep ocean trench and back into the mantle
- 8. Drift/ Wegeners idea that the continents slowly moved over Earth's surface
- 12. a fold in the rock that bends upwards
- 14. Boundary/ 2 plates come together
- 17. amount of space a rock takes up
- 18. The point on the surface directly above the point at which the earthquake occurs
- 19. a fold in rock that bends downward
- 21. Large area of flat land elevated high above sea level
- 22. The point beneath Earth' surface at which rock under stress breaks and triggers an earthquake
Down
- 1. force that squeezes rock until it folds or breaks
- 3. Fracture along Earth in which movement occurs
- 9. The shaking and trembling that results from the movement of rock beneath Earth's surface
- 10. measurement of earthquake's strength
- 11. force that acts on the crust to change its volume or shape
- 13. stress that pushes rock in 2 opposite directions
- 15. force within Earth that pulls rock apart; often causing rock to break
- 16. Boundary/ 2 plates move apart
- 20. Super-continent