Earth

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Across
  1. 2. boundaries- new crust is created
  2. 5. boundaries- not a subduction zone
  3. 6. the upper layer of the earth's mantle
  4. 9. crust- older than oceanic crust, mostly granite rock
Down
  1. 1. boundaries- crust is neither created nor destroyed
  2. 3. mostly solid bulk of earth's interior
  3. 4. plates-irregularly shaped of solid rock
  4. 7. crust- consists mainly of basalt
  5. 8. the rigid outer part of the earth, consisting of the crust and upper mantle