Transpiration in a Plant Leaf

Studying the movement of water within a plant and Measuring change in pressure as the plant transpires.

Transpiration Graph

Plant Setup

Lab Summary

In this experiment, students study the movement of water within a plant, measuring a change in pressure as the plant transpires.


Published: November 2001

Downloads

Here's What You Need

U.S. Educator prices shown.

Probeware (PASPORT Systems)

Learn More
Xplorer GLX (PS-2002)
(or alternate PASPORT interface — see other options)

The Xplorer GLX is a data collection, graphing, and analysis tool designed for science students and educators.

Learn more

Learn More
PASPORT Barometer/Low Pressure Sensor (PS-2113A)

Measures atmospheric pressure changes and doubles as a low pressure sensor. For use with PASPORT Interfaces.

Learn more

Probeware (ScienceWorkshop Systems)

Learn More
750 Interface, USB (CI-7650)
(or alternate PASPORT interface — see other options)

The 750 Interface allows students to measure force, temperature, pressure, angular velocity, acceleration, current, and magnetic field with a built-in function generator and oscilloscope mode.

Learn more

Learn More
Low Pressure Sensor (CI-6534A)

Designed with a high degree of sensitivity to measure minute pressure changes.

Learn more

Other Materials

  • Plant or seedling, 12-15 cm tall
  • Knife or razor blade, bowl of cold water, petroleum jelly
  • Lab stand, 2 clamps, glycerin, electric fan