Relative dating techniques for kids

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Strand 1: Inquiry Process Concept 2, PO 5: Record observations, notes, sketches, questions, and ideas using tools such as journals, charts, graphs, and computers.Concept 3, PO 1: Interpret data that show a variety of possible relationships Concept 4, PO 2: Produce graphs that communicate data Concept 4, PO 3: Communicate results clearly and logically Concept 4, PO 4: Support conclusions with logical scientific arguments Strand 6: Earth and Space Science Concept 3, PO 4: Interpret a geologic time scale.Using these methods, the scientist determines a date range for when an event took place rather than where it fits in the overall record. The techniques scientist need for absolute dating did not become available until the later half of the 20th century.Absolute dating uses clues, such as the emperor's face on a coin, to date an artifact.Tree ring dating offers over 1,000 years of clues in dates of artifacts from the American Southwest.

Artifacts from the earliest dates are in the lower levels or strata of Earth.Absolute dating is a method of determining the specific date of a paleontological or archaeological artifact or location based on a specific time scale or calendar.Scientists base absolute dating on measurable physical or chemical changes or on written records of events.Based on this information, they will learn how to relatively date associated artifacts.They will interpret their archaeological site by writing an explanation of when each stratum and artifact was deposited in their site.

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