Fossils Flashcards
Uniformitarianism
The theory that changes earths crust during geological history have resulted from the action of continuous and uniform processes
Catastrophism
The theory that changes earths crust during geological history Have occurred through violent events
Paleontology
A branch of science with fossils
Relative dating
Determining the order of past events
Absolute dating
A definite order of past events
Superstition
A belief
Isotope
An atom of a certain element
Radio active decay
An unstable atom emites radioactive waste
Half life
How long it takes for an element to half decay
Fossil
Evidence of pre exsisted animal
Trace fossil
An indirect evidence of past life
Mold
A fungus that grows in a multicellular form
Cast
Secondary rock of what mold grows on
Uncomformity
The difference in age between rocks
Mass extinction
Rapid decrease in a species