Transpiration Rate Measurement: Plant Water Loss Potometer Lab
Overview
Quantifies plant water metabolism. Shows environmental factors affecting transpiration.
Why Do This Experiment?
This experiment teaches key concepts in Biology.
Materials Needed
- •Plant cutting with leaves(1)
- •graduated cylinder or capillary tube(1)
- •water(1)
- •vegetable oil(1)
- •stopwatch(1)
- •fan (optional)(1)
Step-by-Step Instructions
- 1
1. Cut plant stem underwater and insert into water-filled tube
- 2
2. Add thin oil layer to prevent evaporation
- 3
3. Record water level changes over time
- 4
4. Calculate rate, test wind and light effects
The Science Behind It
Quantifies plant water metabolism. Shows environmental factors affecting transpiration.
Learning Outcomes
- ✓Understand basic biology concepts
- ✓Develop observation skills
- ✓Learn through hands-on experimentation
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