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Absolute Dating

8th Earth Science

QuestionAnswer
Determining the actual age of an event or object in year is called ? absolute dating
One of two or more atoms that have the same number of protons (atomic number) but different numbers of neutrons (atomic mass). isotope
The process in which a radioactive isotope tends to break down into a stable isotope of the same element or another element. radioactive decay
A method of determining the absolute age of an object by comparing the relative percentages of a radioactive parent isotope and stable daughter isotope. radiometric dating
A substance that cannot be separated or broken down into simpler substances by chemical means. element
The time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope. half-life
Type of radiometric dating that finds the ages of wood, bones, shells, and other organic remains. radiocarbon dating
Type of radiometric dating used to date igneous volcanic rocks. potassium-argon dating
Type of radiometric dating used to find the earliest accurate age of Earth. uranium-lead dating
Small, rocky bodies of rock that have traveled through space and fallen to Earth's surface. meteorites
Fossils that are used to estimate the absolute age of rock layers in which they are found. index fossils
Popular Earth Science sets

 

 



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