Radiometric Dating and Radioactive Decay
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The length of time required for half of the radioactive atoms in a sample of Carbon-14 to decay is its...
era
age
half-life
eon
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In determining the age of ancient artifacts, radiometric dating is effective because the rates of decay of radioactive isotopes _____.
change over time
change from place to place
are constant
vary widely
Tags
NGSS.HS-PS1-8
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If a scientist measures the amount of carbon-14 in a fossil and finds it to be half of what it would be in a living organism, what percent of the original carbon-14 is left in the fossil?
100%
75%
50%
25%
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scientists use radioactive decay to measure the age of archaeological artifacts by...
relative time
absolute time
half-lives
time of day
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A geologist discovers a rock sample with radioactive elements. After analysis, it's determined that 12.5% of the original radioactive elements remain. How many half-lives has the rock experienced? (Hint, at Half-Life = 0, you start with 100%)
zero
1
2
3
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As time passes, unstable parent materials decays into stable
carbon
daughter material
uranium 238
Argon
Tags
NGSS.HS-PS1-8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A newly formed volcanic rock that has just solidified from magma will contain
only parent isotopes
only daughter material
an even mix of parent and daughter
can't be determined
Tags
NGSS.HS-PS1-8
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