🌱 Plant Water Uptake & Transpiration — Virtual Lab

Water leaving the beaker can only be taken up by the plant (the oil layer stops evaporation), so water lost ≈ water transpired. Change one thing, keep the rest the same, and see what happens!

1 · Plan — choose one thing to change 2 · Predict — what will happen? 3 · Run — collect data 4 · Compare — save & overlay runs 5 · Conclude — check your prediction

3 Apparatus

leaves transpire →
← oil (stops evaporation)
← water taken up
Time: 00:00
Ready — plan your investigation
🌱 Explorer 🔒 💧 Humidity 🔒 🌬️ Wind

1 Plan your fair test

Change the factor above  ·  Measure water uptake (ml)  ·  Keep same everything else 🔒

3 Set conditions

2 Predict

💡 Stuck? Reveal a hint

4  Compare your runs

Current run — measurements

Time (h)Water (ml)Uptake (ml)
05000

Cumulative water uptake vs time

5  Conclude & reflect

Run at least two trials (changing only your independent variable) to compare results.
  1. What is the pattern between the thing you changed and how much water the plant took up?
  2. Explain why — use the words stomata, evaporation and diffusion.
  3. Which things did you keep the same, and why did that matter?

Watch the guided tutorial

Use this walkthrough before or after your own fair-test investigation to compare graph evidence and write a stronger conclusion.

add credit: made by lookang, using Claude 4 & enhanced with Claude Fable 5
for more resource URL https://sg.iwant2study.org/ospsg/index.php/interactive-resources/biology