Mini Lesson/Activity

Estimating Biomass Loss from a Large Fire: Student Activity

Student Directions

See the supporting Jamboard resource for virtual or face-to-face learning. If necessary, you can measure your screen.

  1. Using a metric ruler, and the conversion 1 mile = 1.61 kilometers, what is the scale of the image in meters per millimeter?
  2. About what is the total area, in square kilometers, of this photo of Greece and its surroundings?
  3. About what was the land area, in square kilometers, that was burned?
  4. What percentage of the total area was lost to the fires?
  5. Suppose that a typical forest in this region contains about 5.0 kilograms of biomass per square meter. How many metric tons of biomass were lost during the fires? 

Greek Fires 2007


  • NASA/USGS Landsat

Teacher Note

Teachers, these mini lessons/student activities are perfect "warm up" tasks that can be used as a hook, bellringer, exit slip, etc.

Teachers who are interested in receiving the answer key, please contact MND from your school email address at  We verify that requestors are teachers prior to sending access to the answer keys as we’ve had many students try to pass as teachers to gain access. To receive the keys please provide the following:

  1. The link to the school/institution’s teacher directory where you are employed so we can verify that you are a teacher
  2. Ensure that the school email address is provided in your response as we are unable to send to personal email accounts

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