8.2 CW 2

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Across
  1. 6. The study of the magnetic properties of rocks to understand the historical movements of tectonic plates.
  2. 9. A tectonic plate boundary where two plates move apart, often resulting in seafloor spreading.
  3. 12. A tectonic plate boundary where two plates collide, leading to the formation of mountains, trenches, or volcanic activity.
  4. 15. The theory that continents move slowly over the Earth's surface, changing their positions over time.
  5. 17. An opening in the sea floor that releases heated water and minerals, typically found near tectonic plate boundaries.
  6. 19. A sudden shaking of the ground caused by the movement of tectonic plates along faults.
  7. 22. The rigid outer part of the Earth, consisting of the crust and upper mantle.
  8. 23. A major area in the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur due to tectonic activity.
  9. 24. When two tectonic plates slowly crash into each other and mountains are formed
  10. 25. An underwater mountain range formed by seafloor spreading at a divergent boundary in the Atlantic Ocean.
  11. 26. Large sections of the Earth's lithosphere that move and interact with each other.
Down
  1. 1. A change in Earth’s magnetic field recorded in rocks that provides evidence for seafloor spreading
  2. 2. The eruption of magma from the Earth's interior, often associated with tectonic plate boundaries.
  3. 3. The movement of molten rock in the mantle caused by heat from the Earth's interior, which drives plate movements.
  4. 4. scientist that developed the idea of continental drift
  5. 5. The geographic spread of fossils found in different locations, which can provide evidence for historical plate movements.
  6. 7. A lowland region formed by the divergence of tectonic plates, often characterized by volcanic activity.
  7. 8. The edges where two tectonic plates meet, where geological activity such as earthquakes and volcanic eruptions often occur.
  8. 10. A tectonic plate boundary where two plates slide past one another, causing earthquakes.
  9. 11. A deep, narrow depression in the ocean floor formed at convergent plate boundaries where one plate subducts beneath another.
  10. 13. scientist that discovered sea-floor spreading
  11. 14. A location in the mantle where heat causes the melting of rock, leading to volcanic activity, independent of plate boundaries.
  12. 16. A series of volcanic islands formed at a convergent boundary, typically where an oceanic plate subducts under another oceanic plate.
  13. 18. The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away.
  14. 20. The semi-fluid layer beneath the lithosphere where convection currents occur, allowing tectonic plates to move.
  15. 21. The process by which one tectonic plate is forced under another plate, often leading to volcanic activity and earthquakes.