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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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how does a fossil form
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a living organisms that has died and than burried in sediments
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petrified fossil
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minerals have taken over all/part of an organisim
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turned to stone
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what type of rock are fossils in and why?
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sedimentary rock; igneous and metamorphic could not survive the heat/preasure
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how are molds and casts related?
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mold is the hollow area in a fossil and cast is the exact clone/copy of the mold.
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preserved remains
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an organisim that has been trapped in ice, amber, or tar.
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which parts of animal usually do not get fossilized and why?
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the soft parts; they have already decomposed or have been eaten by another animal.
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is it possible for a human fossil to form if so, us it rare or common.
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yes it is possible for a humab fossil to form,but it is.
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why is it rare for a human fossil to form?
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humans are very big to be burried or covered bin sediment or to be preserved.
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what is relative age
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comparison of two rocks and their ages
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comparison of ? ?
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what is absolute age?
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the exact age of a rock
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how does a carbon film fossil form?
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gases escape from a rock and leaves a extremely thin coating of carbon behind.
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