Half-life Questions

Quiz
•
Science
•
6th - 8th Grade
•
Medium
Standards-aligned
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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