Dating rocks - PowerPoint PPT Presentation

A Lesson on Dating

A Lesson on Dating. Geologic. How old is old?. Absolute Dating Analogous to your age . . . i.e. an exact number Often found using the radioactive decay of certain elements. Relative Dating Dating with regard to an order of events . . . analogous to knowing that you are the middle child

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Age of the Earth, Solar System and Universe

Age of the Earth, Solar System and Universe. Solar System: 4.6 billion years old Earth: 4.5 billion years old Universe: 13.8 billion years. Radioactive Decay. The decay of radioactive elements into other elements Mass gets released as energy. Radiometric Dating.

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