Dynamic earth

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Author:
Scienceteacher
ID:
262216
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Dynamic earth
Updated:
2014-02-17 10:50:22
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Vocab
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Unit C1
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  1. What is the outer layer of Earth's surface called?  It is made of rock.
    Crust
  2. What is Earth's interior called? It is the center layer and it is Earth's hottest layer.
    Core
  3. What is hot, soft rock from Earth's mantle?
    Magma
  4. What is a mountain formed of lava and ash?
    Volcano
  5. What is the layer of rock beneath Earth's crust called?  It is very hot so part of this layer is soft rock like melted candy.
    Mantle
  6. What are rigid blocks of crust and upper mantle rock? There are 12 major blocks in all that fit together like a jigsaw puzzle.
    Plates
  7. What is a shaking of the ground caused by the sudden release of energy in Earth's crust?
    Earthquake
  8. What are breaks, or places where pieces of the crust move?
    Faults
  9. What is the theory of how Earth's continents move over its surface?
    Continental Drift
  10. According to Plate Tectonics, about 225 million years ago all of the Earth's land was one supercontinent called _________.
    Pangea
  11. After Pangea broke into two big continents, the northern continent was called_________________ and contained land that became North America and Eurasia (Europe and Asia).
    Laurasia
  12. What was the name given to all of the land in the southern hemisphere when Pangea broke into two?
    Gondwana
  13. What are remains or traces of past life found in sedimentary rock?
    Fossils
  14. What are scientists who study fossils to learn about life of the past called?
    Paleontologists
  15. What sensitive equipment on a satellite can measure bulges from space and this imaging discovered many volcanoes, mountain ranges and other landforms under the Pacific Ocean?
    Gravity Imaging
  16. What can scrape away the tops of mountains, and are made when more snow falls than melts?
    Glaciers
  17. What are physical features on Earth's surface called?
    Landforms
  18. What is the process of breaking rock into soil, sand, and other sediment?  Water, wind, ice are a few causes of this.
    Weathering
  19. What is the process of moving sediment from one place to another?
    Erosion
  20. What is the process of dropping or depositing sediment in a new location?
    Deposition
  21. What is the downhill movement of rock and soil because of gravity?
    Mass Movement
  22. This is a type of mass movement that occurs slowly because of gravity.  Soil moves slowly downhill.
    Creep
  23. What is a large hole in the ground that opens suddenly when rock under the surface has dissolved or become weak?
    Sinkhole
  24. This type of mass movement moves dry soil. The soil falls suddenly to the bottom of the hill.
    Landslide
  25. This type of mass movement can change landforms quickly.  They move wet soil that falls suddenly downhill.
    mudslides

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