Grade 10 Science (Plate Tectonic Theory) - Sir Greg

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Across
  1. 3. a smaller earthquake that occurs in the same general area as a larger earthquake, following the mainshock.
  2. 5. a series of large ocean waves generated by undersea earthquakes, volcanic eruptions, or landslides.
  3. 6. vast, global ocean that surrounded Pangaea during the late Paleozoic and early Mesozoic eras.
  4. 7. a linear depression on the Earth's surface that forms at divergent boundaries, where continental plates are pulling apart.
  5. 8. a specific type of convergent boundary where one tectonic plate is forced beneath another into the Earth's mantle.
  6. 13. an instrument used to detect and record the vibrations and ground motion caused by seismic waves during an earthquake.
  7. 14. a type of plate boundary where two tectonic plates move toward each other.
  8. 15. a measure of the size or energy released by an earthquake. It is typically quantified using the Richter scale or the moment magnitude scale (Mw). The higher the magnitude, the larger the earthquake's energy and potential for damage.
Down
  1. 1. the point on the Earth's surface directly above the hypocenter (focus) of an earthquake.
  2. 2. a supercontinent that existed during the late Paleozoic and early Mesozoic eras, approximately 335 to 175 million years ago.
  3. 4. a long, underwater mountain range that forms at divergent boundaries in the ocean. It is characterized by volcanic activity and the creation of new oceanic crust as tectonic plates move apart.
  4. 9. a type of plate boundary where two tectonic plates slide past each other horizontally in opposite directions.
  5. 10. shaking or trembling of the Earth's surface resulting from the sudden release of energy in the Earth's crust.
  6. 11. a type of plate boundary where two tectonic plates move away from each other.
  7. 12. the actual point within the Earth where the earthquake originates. It is the source of the seismic energy and is typically located beneath the Earth's surface.