Radioactive Dating

Radioactive Dating

Assessment

Flashcard

Science

6th - 10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is radioactive dating?

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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