Making and using a straw potometer


The straw potometer is a quick and easy way to demonstrate how to use a potometer to measure the rate of transpiration in a plant. Though not necessarily practical for every student to set up in their own home, this setup allows students to revise what a potometer does and gives an opportunity for them to investigate further if they want to.

The traditional method for using a potometer to measure transpiration in plants can be found here.

Your FAQs Answered

Q: Where can I obtain the straws?

A: The straws are “sip straws” and can be obtained from Amazon. Type “Frappe Cocktail Straws 4inch Clear” into the search or click on this link.

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