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Unit 3 word list 2
8th grade mr. Hardy
Question | Answer |
---|---|
Absolute age | Age is in years, of a rock or other; can be determined by using properties of the atoms that make up materials |
Half-life | Time it takes for half the atoms of an isotope to decay |
Radioactive decay | Process which some isotopes break down into other isotopes and particles |
Radiometric dating | Process used to calculate the absolute age of rock by ,was urging the ratio of parent isotope to daughter product in a mineral and knowing the half-life of the parent |
Uniformitarianism | Principle stating that earth processes occurring today are similar to those that occurred in the past |