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Name
Date
Fossils and the Rock Record
Section 21.3 Absolute-Age Dating of Rocks
Main Idea
Details
Skim Section 3 of your text. Read the headings and captions more
closely. Write three questions you think may be answered in this
section.
1.
2.
3.
Review
Vocabulary
Use your text to define the following term.
drought
New
Vocabulary
Use your text to define each term.
radioactive decay
radiometric dating
half-life
dendochronology
varve
key bed
Academic
Vocabulary
Define the following term.
similar
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Section 21.3 Absolute-Age Dating of Rocks