Fossil
Preserved remains or evidence of ancient living things.
What is fossils?
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The age of rocks and geologic features compared with other rocks and features nearby.
What are Relative age?
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The numerical age in years of a rock or a object
What is absolute age?
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The impression in a rock left by an ancient organism.
What is Mold?
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Radiocarbon is useful only for organic material from once living organism
What is Dating rocks
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Many dinosaurs were large animals and large bones were left behind.
What is Fossil come in all sizes?
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Represent species that existed on Earth for a short length of time.
What are index fossil?
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The time required for half of the parent isotopes to decay into daughter isotopes.
What is half-life?
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A fossil copy of an organism made when a mold of the organism is filled with sediment or mineral deposits.
What is Cast?
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One of the most common isotopes used in radiometric dating is uranium-235.
what are Dating Igneous Rock?
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Most plants and animals are eaten or decay when they die.
What is Condition for fossil?
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The principle that in undisturbed rock layers the oldest rock are on the bottom
What is Superposition?
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The atoms of the same element that have different number of neutrons.
What is isotopes?
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The preserved evidence of the activity of an organism.
What is Trace fossil?
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The radiometric is a rock that must have U-235 or other radioactive isotopes.
What are Dating Sedimentary Rocks?
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The principle states that geologic process that occur today are similar to those that have occurred in the past.
What is Uniformitarianism?
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A surface where rock has eroded away producing a break or gap in the rock record.
What is unconformity?
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Estimated to be between 4.03 and 4.28 years old.
What is the age of Earth?
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The fossilized carbon outline of an organism or part of an organism.
What is Carbon film?
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One important radioactive isotopes used for an isotopes.
What is Radiocarbon Dating?
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The idea that condition and organism on Earth change in quick violent events
What is Catastrophic
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Matching rocks and fossils from separate location is called.
What is correlation?
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The process by which an unstable element naturally changes into another element that is stable.
What are Radioactive decay?
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Replicas or copies of organism can form from groundwater.
What is Mineral Replacement?
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The radioactive isotopes decay at a constant rate they can be used like clocks.
What is Radiometric Ages?
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