Saturday, April 17, 2010

relative and absolute dating



Curricular Content: Distinguish between relative and absolute geologic dating techniques in determining the age of fossils and artifacts.

Grade level: 9th grade physical science

Tools:

Web resources:

Earth timeline video

Basic definitions

More definitions

ow dating works video

Radiometric dating video

Radiocarbon dating video

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Strategy: After watching the Earth timeline video students launch into the question, “How do we know how old the stuff we find as fossils really is?” Relative dating techniques and absolute dating techniques are discussed. Videos complement the investigation. Students are given fossils and asked to determine the approximate age of the fossils using tools such as charts and tables.




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