Half-life Questions

Half-life Questions

6th - 8th Grade

10 Qs

quiz-placeholder

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Half-life Questions

Half-life Questions

Assessment

Quiz

Science

6th - 8th Grade

Medium

NGSS
HS-PS1-8

Standards-aligned

Created by

Mike Silvering

Used 12+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are radioactive isotopes useful for dating?

They always pay for dinner.

They decay at a predictable rate.

They have an internal arrangement of atoms.

They always have a short half-life.

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which isotope would be best for finding the age of an ancient Egyptian mummy?

Carbon-14

Potassium-40

Uranium-238

Rubidium-87

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What are 2 characteristics of an old tree stump that make it useful for dating with Carbon-14?

It has a short half-life

It was alive recently

It was a living thing

It is a solid substance

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the half-life of Potassium-40 in a rock if you cut the rock in half?

The half-life will be cut in half

The half-life will stay the same

The half-life will double

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the half-life of Potassium-40 in a rock if you melt the rock?

The half-life will be cut in half

The half-life will stay the same

The half-life will double

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the half-life of Potassium-40 in a rock if 1.3 billion years have already passed?

The half-life will be cut in half

The half-life will stay the same

The half-life will double

Tags

NGSS.HS-PS1-8

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How old is a rock that has 1/2 of its Rubidium-87?

4.9 billion years

49 billion years

4.9 years

490 billion years

490 million years

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