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Potometer: water uptake sim

A potometer measures water uptake, which estimates transpiration.

Potometer · water uptake · covers the GCSE, IGCSE, O-Level topic

Live, not a video. Anyone can unlock 2 figures free; a free account unlocks up to 5 and keeps them in your dashboard.

What the sim shows

A potometer measures water uptake, which estimates transpiration. Change one condition at a time, let the shoot settle, then time the air bubble. The reservoir resets the bubble. All joints must be airtight and the shoot is fitted under water. Rates here are declared teaching examples, not measurements of a particular plant.

  • Read the instrument, then record a value for each trial

Use it in your lessons

  • Try it here: anyone can unlock 2 figures free, and a free account unlocks up to 5. Runs on a laptop, a Chromebook or a phone; nothing to install.
  • Present it and share student links with the teacher plan, from US$5 a month, billed yearly.
  • Put it on your own website or LMS for US$9, paid once, or every sim from US$29 a month.

Free guide: 12 practicals as sims, and how to run one in a lesson →

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