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PBS
Pbs Learning Media: Rate Tornado Damage
In this interactive activity from NOVA Online, use the Fujita tornado intensity scale to assess the level of destruction left in the wake of actual tornadoes.
PBS
Nova: Hunt for the Supertwister
This activity will introduce you to the Fujita scale for rating tornado strength. You will then put your knowledge to use by observing photographs of tornado damage and assigning them a rating.