Pinkvilla
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Joined: Wed Sep 12, 2018 12:24 pm
Occupation: Teacher

building a hydrometer

Postby Pinkvilla » Tue Jan 22, 2019 9:48 am

We've tried to build a hydrometer with a straw and clay but the results to measure the salinity of water are not accurate. Any ideas as to how to build a hydrometer that would give us accurate results? Thank you!

norman40
Expert
Posts: 922
Joined: Mon Jul 14, 2014 1:49 pm
Occupation: retired chemist

Re: building a hydrometer

Postby norman40 » Wed Jan 23, 2019 4:38 pm

Hi Pinkvilla,

A quick online search turned up a few ways to build a hydrometer. One example can be found here:

https://www.wikihow.com/Make-a-Hydrometer

Once you've made a hydrometer, you have to calibrate it. Calibration instructions are included at the above link.

I hope this helps. Please ask again if you have more questions.

A. Norman


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