Type:

Other

Description:

In this lesson, students will learn that some evolutionary change is rapid and discontinuous, and some change is gradual; how fossil evidence can provide clues to the past; and how speciation may account for evolutionary branching and diversification. Fossil shells of a land snail are arranged by layers of age into a sequence pattern suggesting gradual change, or punctuated equilibria. Students will develop a graph showing possible phylogenetic relationships over time of the organism. A variation of the lesson plan uses caminalcules in place of fossil shells.

Subjects:

  • Science > General

Education Levels:

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

Keywords:

Space Science,Biology,Chemistry,NSDL,Geology,Science,Paleontology,NSDL_SetSpec_dlese.org,Natural history,High School,Space sciences,Life Science,oai:nsdl.org:2200/20061003230243810T,Physical sciences,Astronomy,Physics,Geoscience,Earth science

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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