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Joe Ryan's Science

The body of an insect is preserved in amber this is an example of? original remains
What is a fossil? Living things from a long time ago
Relative Age Age of an object in relation to other objects
Index Fossils Fossilized remains from a long time ago
absolute age How old something is determined by the original remains
radioactive dating Used with igneous rocks
What is Hutton's theory of Uniformitarianism? Look up the answer
Have humans existed for most of Earths History? Look up the answer
What does the geologic time scale divide earths history into? Look up the answer
Are changes on earth gradual? Look up the answer
Why do Igneous rocks NOT contain fossils Look up the answer
Dinosaur footprint fossil Example of a trace fossil
The width of the rings on a tree section indicate what? How much the tree grew in different years
The earliest fossils are from One-celled organisms
What is the result when the soft part of an organism decays quickly? Look up the answer
Breakdown of radioactive material is measured in what? half-lives
Smallest unit of geological time Measured in epoch
Precambrian time refers to what? Look up the answer
Study the Rock Layer and Fossil Diagram Study the Rock Layer and Fossil Diagram
Created by: kincheloec