Radiometric

Radiometric

8th Grade

25 Qs

quiz-placeholder

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Radiometric

Radiometric

Assessment

Quiz

Science

8th Grade

Hard

NGSS
HS-PS1-8, HS-ESS1-5, HS-ESS1-6

Standards-aligned

Created by

Lisa Thompson

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph shows the radioactive decay of a 50-gram sample of a radioactive isotope. 
According to the graph, what is the half-life of this isotope

100 years

150 years

200 years

300 years

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Radiometric dating is possible 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

Media Image

How many grams of Carbon-14 will remain after 17,100 years- C-14 has a half life 5,730 so 17,100 is about 3 half lives?

32 g

16 g

8 g

4 g

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What percentage of Rubidium-87 will remain after 4 half-lives?

25%

12.5%

6.25%

3.125%

Tags

NGSS.HS-PS1-8

5.

DRAG AND DROP QUESTION

1 min • 1 pt

Radioactive decay happens when a(n)​ (a)   atom will change it's nucleus to become a​(n) ​ (b)   atom.

unstable

stable

Tags

NGSS.HS-PS1-8

6.

DRAG AND DROP QUESTION

1 min • 1 pt

Radioactive decay happens when a(n)​ (a)   atom will change it's nucleus to become a​(n)​ (b)   atom.

unstable

stable

Tags

NGSS.HS-PS1-8

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

You find a rock sample with radioactive atoms present.  If 25% of the original radioactive atoms were present, how many half-lives has the rock been around for? (Hint, at Half-Life = 0, you start with 100%)

zero

1

2

3

Tags

NGSS.HS-PS1-8

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