fossils
types of fossils
absolute age dating
radiometric ages
MISC
100
these are the preserved remains or evidence of ancient living things
What are fossils?
100
The fossilized carbon outline of an organism or part of an organism.
What is carbon film?
100
to mean the numerical age, in years, of a rock or object
What is absolute age
100
a naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms
What is a mineral
100

the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.



uniformitarianism

200

this person studies fossils and ancient otganisms

Paleontologist

200
this is the preserved evidence of the activity of an organism
What is a trace fossil?
200
absolute age dating is a process of dating what
What is rocks and organisms
200

at what rate do isotopes decay

What is constant

200

a break or gap in the geological record, representing a period of time where sediment deposition stopped or was interrupted, followed by renewed deposition.

unconformity

300
the remains of organisms
What are bones
300
a type of fossil that is covered in a hardened substance and has not been eroded, but fossilized the organism in perfect condition
What is original matireal
300
what is the measured unit of decay time
What is a half life
300
the product of an parent isotope is
What is daughter product
300
the theory that changes in the earth's crust during geological history have resulted chiefly from sudden violent and unusual events.


catastrophism

400

the age of rocks and geologic features compared with other rocks and features nearby.

Relative age.

400
this type of fossil is when a foot print gets fossilized
What is mold fossil
400
isotopes that are unstable are called what
What is radioactive atoms
400
they use the parent isotopes to daughter product ratio to de determine what
What is radiometric age
400

A piece of an older rock that becomes part of a new rock.

what is inclusion

500
the hardened sap that a insect gets trapped in
What is amber
500
name all the types of fossils
What is a cast, mold, carbon film, trace, and original matireal
500
the unstable radioactive isotopes are called what
What are parent isotopes
500
using the answer in the last question in this category 400 at what precision is the determined age
What is very acurate
500

At this point 25 percent of the isotopes are parent and 75 percent of the isotopes are daughter.

What is stage 3 of half-life of Radioactive decay

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