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2.47 Nature’s Air Conditioner – Transpiration

This is Lesson 47, “Nature’s Air Conditioner: Transpiration,” from the Grow Your PALS Program Guide (National FFA Mentoring Program), part of the Plant Science unit. Students define transpiration through a sentence-scramble activity, sculpt the transpiration process with Play-Doh, and conduct a hands-on outdoor experiment by bagging tree leaves to observe and measure water released through transpiration.

At a glance

Learning objectives
  • Define transpiration.
  • Sculpt a model of transpiration.
  • Observe the process of transpiration in leaves.
Time required
Instruction time for this lesson: 45 minutes.
Materials
  • Quart-size resealable plastic bag – 1 per PALS pair
  • Several small, clean pebbles – 3 pebbles per PALS pair
  • Rubber bands – 2 per PALS pair
  • Graduated cylinder
  • PALS.47.AS.A – 1 per PALS pair and one for large group
  • Play-Doh™
Unit
Plant Science
Lesson Type
Large Group
Precepts
F. Continuous Improvement; F3. Use innovative problem-solving strategies
Key Terms
transpiration
Resources
Transpiration animation: http://techalive.mtu.edu/meec/module01/Transpiration.htm; Statistics: http://ga.water.usgs.gov/edu/watercycletranspiration.html

Downloads & Links

Aligned Standards

National Standards

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