Plate Tectonic

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Across
  1. 4. Instruments used to measure seismic waves
  2. 5. Natural movements or vibrations that occur when the crust of the earth shifts
  3. 7. Occur when a gap in earth's surface releases materials such as magma
Down
  1. 1. Explains how landmarks and natural disasters form and how they are linked together
  2. 2. Most earthquakes and volcanoes distinct zones around the edge of tectonic plates
  3. 3. Vibrations mainly caused by the release of energy during an earthquake
  4. 6. Occurs when there is movement along the floor of the ocean