What is radioactive dating?
Radioactive Dating

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Science
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6th - 10th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A method used to determine the age of materials by measuring the amount of radioactive isotopes present.
2.
FLASHCARD QUESTION
Front
What is a parent isotope?
Back
The original radioactive isotope that undergoes decay to form a daughter isotope.
3.
FLASHCARD QUESTION
Front
What is a daughter isotope?
Back
The product of the decay of a parent isotope.
4.
FLASHCARD QUESTION
Front
What is half-life?
Back
The time required for half of the parent isotope in a sample to decay into daughter isotopes.
5.
FLASHCARD QUESTION
Front
How do you calculate the age of a sample using half-lives?
Back
Multiply the number of half-lives that have passed by the length of one half-life.
6.
FLASHCARD QUESTION
Front
What are index fossils?
Back
Fossils of species that were widespread but only existed for a short period, used to date rock layers.
7.
FLASHCARD QUESTION
Front
What is the significance of Carbon-14 in dating?
Back
Carbon-14 is used to date organic materials up to about 50,000 years old.
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