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Radiometric Dating

Authored by Lisa Thompson

Science

8th Grade

NGSS covered

Radiometric Dating
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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The half-life of carbon 14 is

5,730 years

6,745 years

3,567 years

unknown

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In potassium-argon dating

Potassium-40 decays to argon-40

The parent isotope has a half-life of 1.26 million years.

The technique can be used only in organic materials.

All of these

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In potassium-argon dating method, Potassium-40 has a half-life of approximately:

3 billion years

6 billion years

8 billion years

unknown

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

While analyzing the bodies of two ancient humans who were known to have lived at the same time, you discover one of the bodies has a slightly greater amount of carbon-14 still remaining. Which conclusion should you draw?

The individual with more carbon-14 remaining probably ate more plants than the other.

Carbon-14 decays at different rates in different individuals.

The body with more carbon-14 remaining died earlier than the other individual.

All of these

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The product of the radioactive decay of a parent isotope is know as a _____ isotope.

Daughter

Half-Life

Absolute

None of these

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Every atom of carbon-14 in the atmosphere started out as which element?

nitrogen

hydrogen

oxygen

carbon

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A half life is the time it takes for half of the parent isotopes to change into daughter isotopes.

true

false

Tags

NGSS.HS-PS1-8

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