Yeah, I'm kinda clueless here, and it doesn't help that it's in French.
I think the answer to the fourth part is "distillation"??
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From: derf [mailto:derf247@gmail.com]
Sent: September 7, 2006 6:42 PM
To: Robert Duquette
Cc: spridgets@autox.team.net
Subject: Re: physics homework ( NO LBC )
Water is heavier than oil.
Salt dissolves in water.
Sand doesn't dissolve in water.
Water boils at 100*C, salt doesn't.
These are all physical properties of the parts of the mixture.
1 As far as properties of physics that explain the cause, I guess:
2 Lighter liquids will float on top of heavier liquids
3 Solids dissolved in water can pass through a filter
4 Solids dissolved in water will be left behind if the water is boiled off.
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