Changes in the Ozone Layer

PBS Learning Media
Contributed By
PBS Learning Media
Resource Type
Classroom Material
Keywords
atmosphere ozone chemistry chemical composition chemicals pollution ultraviolet ultraviolet rays science
Subjects
Science History-Social Science
Grade Levels
Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11 Grade 12
Related Resources

Changes in the Ozone Layer

This ThinkTV segment describes how the ozone layer is formed in the upper atmosphere, and how it serves to protect organisms from harmful ultraviolet rays. Depletion of the ozone, a process which began in the 1970s, was caused by CFCs. Today, the holes in the ozone layer appear to be shrinking.
Publisher
PBS Learning Media

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