The Age of the Earth

The Age of the Earth

Assessment

Flashcard

Science

6th - 10th Grade

Hard

NGSS
HS-PS1-8, HS-ESS1-6

Standards-aligned

Created by

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15 questions

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1.

FLASHCARD QUESTION

Front

What is radioactive decay?

Back

Radioactive decay is the process by which unstable atomic nuclei lose energy by emitting radiation, transforming from parent isotopes into daughter isotopes.

Tags

NGSS.HS-PS1-8

2.

FLASHCARD QUESTION

Front

What determines the identity of an element?

Back

The identity of an element is determined by the number of protons in its nucleus.

3.

FLASHCARD QUESTION

Front

Which radioactive isotope has the longest half-life?

Back

Rubidium-87 has the longest half-life among common radioactive isotopes.

Tags

NGSS.HS-PS1-8

4.

FLASHCARD QUESTION

Front

What role do neutrons play in an atom?

Back

Neutrons help to hold the nucleus of an atom together by providing nuclear stability.

Tags

NGSS.HS-PS1-8

5.

FLASHCARD QUESTION

Front

What is the estimated age of meteorites, which is thought to be the age of most solar system objects?

Back

Meteorites are estimated to be about 4.55 billion years old.

Tags

NGSS.HS-ESS1-6

6.

FLASHCARD QUESTION

Front

What is a half-life?

Back

A half-life is the time required for half of the radioactive atoms in a sample to decay into daughter isotopes.

Tags

NGSS.HS-PS1-8

7.

FLASHCARD QUESTION

Front

What are daughter isotopes?

Back

Daughter isotopes are the products formed when a parent isotope undergoes radioactive decay.

Tags

NGSS.HS-PS1-8

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