Science Buddies: "Ask an Expert"
If you have a question about your science fair project, you are in the right place!
Physical Science
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- isabellar
- Posts: 1
- Joined: Tue Sep 11, 2012 9:05 am
- Occupation: Student
- Project Question: Can seawater be desalted by freezing?
- Project Due Date: September 17, 20012
- Project Status: I am conducting my research
Re: Physical Science
by k4gfwgerry » Wed Sep 12, 2012 7:22 pm
The answer is no since the salt will remain trapped in the ice. However, if the water is boiled, the steam can be retrieved which is distilled water with no salt.
Gerry Gruenbaum
Science Buddies "Ask an Expert" Volunteer
Science Buddies "Ask an Expert" Volunteer
- k4gfwgerry
- Expert
- Posts: 45
- Joined: Wed Jul 06, 2011 12:35 pm
- Occupation: Retired Electronics Engineer from Motorola Solutions
- Project Question: n/a
- Project Due Date: n/a
- Project Status: Not applicable
Re: Physical Science
by ChiaraB » Fri Sep 21, 2012 3:37 pm
I agree with Mr. Gruenbaum's Expert reply, but in some cases some salt can be removed from saltwater by making it colder. If there is a lot of salt in the saltwater, lowering its temperature will lessen the water's ability to hold the dissolved salt. Some of the salt would crystallize again. Of course, distillation is the best method of desalinating water!
- ChiaraB
- Expert
- Posts: 23
- Joined: Tue Sep 18, 2012 2:54 pm
- Occupation: Student: 11th grade
- Project Question: Science Buddies Mentor
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