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Sediments and Evaporation
Moderators: AmyCowen, kgudger, bfinio, MadelineB, Moderators
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debbiemcmanis
- Posts: 1
- Joined: Thu Jan 13, 2011 12:03 pm
- Occupation: student
- Project Question: Sorting out Sediments
- Project Due Date: Feb. 11, 2011
- Project Status: I am conducting my experiment
Sediments and Evaporation
Help! I am trying to recreate sedimentary layers and their formation but I am not getting any evaporation of the water in the bottles.
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deleted-71417
- Former Expert
- Posts: 932
- Joined: Wed Oct 03, 2007 12:24 am
Re: Sediments and Evaporation
Hi,
Evaporation rates depend on a number of things: surface area of the liquid-air interface, relative humidity, temperature, and air flow. If you are using narrow neck bottles, try using wide neck jars or shallow pans. Try using a fan to blow air across the liquid surface. Try raising the temperature of the air blowing across the liquid (this reduces the relative humidity and increases the evaporation rate by increasing the air flow). A rule of thumb is that the evaporation rate should approximately double for every 10 degrees F. that you increase the temperature.
Good luck with the project!
Barrett L Tomlinson
Evaporation rates depend on a number of things: surface area of the liquid-air interface, relative humidity, temperature, and air flow. If you are using narrow neck bottles, try using wide neck jars or shallow pans. Try using a fan to blow air across the liquid surface. Try raising the temperature of the air blowing across the liquid (this reduces the relative humidity and increases the evaporation rate by increasing the air flow). A rule of thumb is that the evaporation rate should approximately double for every 10 degrees F. that you increase the temperature.
Good luck with the project!
Barrett L Tomlinson