Earthquakes and Volcanoes

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Across
  1. 1. A graphical illustration of seismic waves.
  2. 6. Volcanoes along divergent plate boundaries and oceanic hot spots. Large, gentle slopes of basaltic lava.
  3. 12. Small, steep-sided volcanoes that erupt gas-rich, basaltic lava.
  4. 13. Waves that cause particles in the ground to move up and down in a rolling motion.
  5. 14. A break in Earth's lithosphere where one block of rock moves toward, away from, or past another.
  6. 15. Scientists that study earthquakes.
Down
  1. 2. Molten rock below Earth's surface.
  2. 3. An instrument that measures and records ground motion and can be used to determine the distance seismic waves travel.
  3. 4. A vent in Earth's crust through which melted-or molten rock flows.
  4. 5. Volcanoes that aren't associated with plate boundaries.
  5. 7. The location on Earth's surface directly above the earthquake's focus.
  6. 8. Where waves originate where rocks first move along the fault, at a location inside Earth.
  7. 9. The vibrations in the ground that result from movement along breaks in Earth's lithosphere.
  8. 10. A liquid's resistance to flow.
  9. 11. Molten rock that erupts onto Earth's surface.