Type:

Other

Description:

This lesson shows students that age-dating rocks involves counting atoms and comparing the counts. Students use simulated rock samples, which show a highly magnified selection of 128 atoms, each sample with a different proportion of the atoms of two different elements: a parent radioisotope, and its daughter product. By counting the parent radioactive atoms and knowing the half-life of those atoms, students can figure the number of half-lives since the sample solidified, and therefore the age of the sample.

Subjects:

  • Education > General
  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12

Keywords:

Grade 6,NSDL,Grade 8,Grade 9,Space Science,Mathematics,Grade 7,Science process skills,NSDL_SetSpec_1007936,Hypothesizing,Analyzing data,Instructional materials,Radioactivity,Middle School,Earth and space science,Interpreting data,oai:nsdl.org:2200/20120114184122851T,Rocks,Nuclear reactions,Grade 10,Earth materials,Chemistry,Physics,Science as inquiry,General,High School,Vocational/Professional Development Education,Using mathematics,Physical science,Education,Scientific habits of mind,Geoscience

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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