Lydia
Factors Affecting Rate of Transpiration
Learning Objective:
Students will investigate the effects of variation of air movement, temperature, humidity and light intensity on transpiration rate.
 
Prompt:
I want to design a simulation interactive for my students.
 
Grade level: Secondary 3
 
Student readiness level: Mixed Abilities
The simulation is based on: investigating how different environmental factors — light intensity, temperature, wind speed, and humidity — affect the rate of transpiration in plants.
 
The objective of the simulation is to: help students understand that transpiration rate varies with changes in environmental conditions, and to explore how each factor influences water loss from the leaves.
 
While using the simulation, students should experience: adjusting one factor at a time (light, temperature, wind, humidity) and observing real-time changes in the rate of transpiration. They should visualise how increased light or wind speeds up water loss, while higher humidity or lower temperature reduces it. Students can compare and interpret trends from a dynamic graph showing transpiration rate over time.
 
The interface should include:
Sliders or dials to control light intensity, temperature, wind speed, and humidity.
A plant model (e.g. potted plant or leaf cross-section) that visually responds to changes — such as faster or slower water vapour movement from stomata.
A digital sensor panel showing current settings and live readings of transpiration rate.
A real-time graph plotting time (x-axis) against rate of transpiration (y-axis).
Buttons for Start Experiment, Pause, Reset, and Compare Conditions.
Optional guided mode that prompts students to test one variable at a time and reflect on observed patterns.
Tooltip or info icons explaining scientific reasoning behind observed changes.

https://vle.sandbox.sls.moe.edu.sg/class-group/module/view/f83a3a0b-ac40-49c0-9389-5cd5debd4de2/section/33837/activity/34137