Unit C Chapter 1

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Author:
KYLIEDEER
ID:
52451
Filename:
Unit C Chapter 1
Updated:
2010-11-30 19:56:41
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Earthquakes Volcanoes
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Earthquakes and Volcanoes
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  1. What is the hottest layer of the Earth?
    The inner core is the hottest layer of the Earth.
  2. What is the mantle?
    The mantle is thickest layer of Earth that is made of solid and melted rock?
  3. What do scientists use to measure earthquakes?
    Scientists use seismographs, Mercalli scale, and the Richter scale to measure earthquakes .
  4. Why does California have more than 20,000 earthquakes each year?
    California has more than 20,000 earthquakes each year because there is a large fault running through the state.
  5. What do volcanoes form as plates move apart and magma rises to the surface of the crust?
    New ocean floor forms as plates move apart and magma rises to the surface of the crust
  6. What forms different kinds of volcanic mountains?
    Different kinds of eruptions form different kinds of volcanic mountains.
  7. What is the layer of Earth that includes land and ocean floor?
    Crust is the layer of Earth that includes land and ocean floor.
  8. What is the deepest layer of Earth?
    The core the deepest layer of Earth.
  9. What are continent-sized slabs that make up the crust and upper mantle.
    Plates are continent-sized slabs that make up the crust and upper mantle.
  10. What is an earthquake?
    An earthquake is the shaking of the Earth's crust.
  11. What is the break in the Earth's crust along which rocks move?
    A fault is the break in the Earth's crust along which rocks move.
  12. What is the underground point where an earthquake first starts?
    A focus is the underground point where an earthquake first starts.
  13. What is the point on the Earth's surface right above the focus of an earthquake.
    The epicenter is the point on the Earth's surface right above the focus of an earthquake.
  14. What is the instrument that records earthquake waves?
    A seismograph is the instrument that records earthquake waves.
  15. What is a volcano?
    A volcano is a mountain that forms when red-hot melted rock flows through a crack onto the Earth's surface.

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