Earth Science Vocabulary

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Across
  1. 1. -the rocky surface that makes up the top of the lithosphere and includes the continents and the ocean floor
  2. 2. - device that can record the vibrations in the earth
  3. 3. - system of drains that prevents flooding during rainstorms
  4. 5. - a small ridge or raised area of land used to prevent a body of water from overflowing
  5. 6. -layer of the earth beneath the mantle. It is believed to be made up of iron and nickel
  6. 7. - melted rock that reaches the earths surface
  7. 8. - an opening in the Earths crust through which molten lava, ash,and gases are ejected
  8. 14. - a type of weathering the changes rocks into one or more new substances
  9. 16. -melted rock inside the earth
  10. 19. world's longest mountain range;Iceland is part of range
  11. 21. - a deposit of sediment deposited by a river when it leaves the mountains
  12. 22. -the breaking down or wearing of landforms
  13. 25. -deep canyon in the ocean floor
  14. 26. - moisture that falls to the earth after being mixed with wastes from burned fossil fuels
  15. 28. - a sudden movement of the earth's crust
  16. 29. - a scientific thearym that the continents were once joined together in one big supercontinent and then slowly drifted a part
Down
  1. 1. - the building up of land or the creation of land forms
  2. 3. - a structure built at right angles to the beach to control beach erosion
  3. 4. -the layer of the earth beneath the crust. It is believed to be slightly molten and solid rock
  4. 9. -a deposit of sediment that builds up river's mouth
  5. 10. - Continent-sized slabs that move slowly across the earth surface on a thin layer of partially melted mantle
  6. 11. - a type of weathering that breaks rocks into smaller pieces without changing it chemically; also known as physical weathering
  7. 12. -a mound of sand piled up by wind
  8. 13. -a large mass of ice and snow that moves over land leaving distinctive features on the earth surface
  9. 15. -the movement of weathered rock from place to place
  10. 17. - a structure build across the river to control its flow
  11. 18. - sand ,silt, gravel, and other small particles
  12. 20. -the dropping of sediment particles by water wind or ice
  13. 23. - a crack in the rock of the Earth's crust (where most earthquake occur)
  14. 24. of fire -a zone of volcanic and seismic activity; it directly borders the Pacific ocean
  15. 27. - a series of large sea waves caused by an underwater earthquake or a volcanic eruption