TRIVIA

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TRIVIA (?)
Why are plants green in spring/summer and brown
in autumn?
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Photosynthesis

• Objectives
• The students will describe how chlorophyll uses
  different lights for photosynthesis.
• The student will analyze absorbed and reflected
  lights by looking satellite images sensed with
  green, red and near infrared sensors.

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Photosynthesis

• Chlorophyll pigments absorb sunlight in order to
  get energy.
• Do they absorb all of the sunlight?

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How do plants use sunlight?
Chlorophyll pigments absorb 90 of the Red and
Blue lights or energy. Reflect back about 20
Green light Reason why we see them green!
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(No Transcript)
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What can satellites see?
Satellite electromagnetic sensors let us see
beyond the visible...
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How do imaging satellites work?
satellite eyes or sensors
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Remote Sensing Images
human eye
satellite eyes
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Questions

• Do you think plants are the only thing that
  absorb and reflect different lights?
• How does pure water use light? (take a guess!)

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How does a satellite image look like?
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• Why are plants green in spring/summer and brown
  in autumn?

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Assessment - Survey
1- Do you like this kind of activities where a
new technology is apply? 2- What would you
change in this activity? 3- What do you think
worked well? 4-Would you like to know more about
satellite technology and applications?
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Assessment Results

• Question 2 - Students comments
• Colors More questions
  Directions/software
• 6 3
  7
• Question 3 - Students comments
• Work in groups.
• Match their curve with the model.
• Work with computers.
• Everything