Absolute Ages of Rocks Earth Science Evidence about Earth's Past Absolute Ages of Rocks Questions What are some of the limits of radiometric dating techniques? What is dendrochronology? What is a parent isotope? What is a daughter isotope? What is electron capture and how is it related to absolute dating? How can half-life be calculated? How do you measure the decay of radioactive isotopes? How can radioactive decay be used to date rocks? What is radioactive decay? How does absolute age differ from relative age? What do scientists use to determine the absolute age of fossils and rocks.? Evidence about Earth's Past View all chapters Fossils Relative Ages of Rocks Absolute Ages of Rocks Prev