- Relative Dating
- Relative Dating - Utah Science
- Edible Rock Activity
- Who's on First? A Relative Dating Activity
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Unlike people, you can’t really guess the age of a rock from looking at it.
Relative Dating - Utah Science
Yet, you’ve heard the news: Earth is 4.6 billion years old. That corn cob found in an ancient Native American fire pit is 1,000 years old. Geologic age dating—assning an age to materials—is an entire discipline of its own.
Edible Rock Activity
In a way this field, ed geochronology, is some of the purest detective work earth scientists do.It’s based either on fossils which are recognized to represent a particular interval of time, or on radioactive decay of specific isotopes. Based on the Rule of Superposition, certain organisms clearly lived before others, during certain geologic times.
Who's on First? A Relative Dating Activity
There are two basic approaches: relative age dating, and absolute age dating.
Relative dating activity answers:
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