Jacob Heim The Land.

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Across
  1. 3. molten rock from a volcano in the form of a liquid
  2. 6. features on the earths surface that make up the terrain
  3. 10. originator of continental drift hypothesis
  4. 11. a supercontinent of the horizon hemisphere made up of the landmasses that currently correspond to north america Greenland Europe and asia
  5. 14. a hot or cold mixture of water and rock fragments that flow quickly down the slopes of a volcano
  6. 15. an opening in the earths crust through which lava volcanic ash and gases escape
  7. 17. the movement of continents resulting from the motion of tectonic plates
  8. 18. tectonics a scientific theory that explains how major landforms are created as a result of earths subterrain movements.
  9. 19. a mixture and semi molten rock found beneath the surface of the earth
  10. 20. the breaking down of dissolving of rocks and minerals on the surface of the earth
Down
  1. 1. the location where two plates meet
  2. 2. the wearing away of rocks and other deposits on the earths surface by the action of water ice wind etc
  3. 4. the innermost layer of the earth
  4. 5. a hot mixture of rock
  5. 7. heat driven cycles that occur in the air ocean and mantle
  6. 8. the outermost layer of the earth
  7. 9. the thickest layer of earth
  8. 12. a supercontinent formed a long time ago about 230-280 million years ago
  9. 13. a hard surface layer
  10. 16. a large continuous mass of land conventionally regards a collective region