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 |