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6th Gr Topic 3 rocks

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  • about how many meters thick is the mantle?
    3000
  • Is the outer core liquid or solid
    liquid
  • is the inner core liquid or solid
    solid
  • do metamorphic rocks form above or below earth
    below
  • rocks that formed from small pieces of rock or remains of plants and animals pressed together
    sedimentary
  • rocks that formed from cooled magma or lava
    igneous
  • what name means to change?
    metamorphic
  • rocks that changed by heat, pressure or chemical reaction
    metamorphic
  • the crust is between what and what kilometers thick?
    5 and 40
  • which is the thickest layer??
    mantle
  • What 2 things do scientists get evidence about earth's interior from?
    rocks, seismic waves
  • what is the 2nd layer of the earth
    mantle
  • What are 2 things inner core is made of?
    iron and nickel
  • what is the outer layer of the earth?
    crust
  • where do seismic waves come from
    earthquakes