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Relative age dating, fossils, and the History of Earth Ch #11 and #12

Quiz by Cassie Selby

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64 questions
Show answers
  • Q1
    Fossilized tree sap.
    Amber
    30s
  • Q2
    The remains of an ancient organism. Examples include shells, bones, teeth, and leaves.
    Body-fossil
    30s
  • Q3
    A mold filled with sediment and hardened to create a replica of the original fossil.
    Cast
    30s
  • Q4
    The process of becoming a fossil.
    Fossilization
    30s
  • Q5
    A fossil indicates the relative age of the rock in which it is found. Index fossils come from species that were widespread but existed for a relatively brief period of time.
    Index-fossil
    30s
  • Q6
    A fossil that must be studied with the aid of a microscope.
    Microfossil
    30s
  • Q7
    An impression made in sediments by the hard parts of an organism.
    Mold
    30s
  • Q8
    Fossilization in which minerals in water deposit into empty spaces in an organism.
    Permineralization
    30s
  • Q9
    Evidence of the activity of an ancient organism; e.g. tracks, tubes, and bite marks.
    trace-fossil
    30s
  • Q10
    A rock unit that is defined by a characteristic index fossil or fossil assemblage.
    Biozone
    30s
  • Q11
    One of Steno's principles that states that an intrusion or fault is younger than the rocks that it cuts through
    Cross-cutting-relationships
    30s
  • Q12
    A division of Earth's history into blocks of time distinguished by geologic and evolutionary events.
    geologic-time-scale
    30s
  • Q13
    A distinctive, widespread rock layer that formed at a single time.
    key-bed
    30s
  • Q14
    A sedimentary rock layer that extends sideways as wide as the basin in which it forms.
    lateral-continuity
    30s
  • Q15
    Sedimentary layers that were deposited horizontally.
    Original-horizontality
    30s

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