Firstly, sift the mixture to separate the gravel from the sand and salt.
Now place the sifted mixture into water. The sand will sink to the bottom and the salt will eventually dissolve.
Pour this watery mixture through filter paper to catch all of the sand.
If you want the salt back in solid form, simply boil the water.
I would add enough water to dissolve all of the salt. Then pass it through a strainer to collect the gravel.
With a fine mesh sieve.
Particle size, solubility and magnetism. The iron filings can be separated with a magnet, the salt by disolving in water, and the remaining sand and gravel separated by simple screening.
A simple method is sieving.
with fillter paper
Sand and gravel can be separated by sifting them through a mesh, that will allow the sand to fall through, but will hold back the gravel.
I would add enough water to dissolve all of the salt. Then pass it through a strainer to collect the gravel.
As salt is soluble in water, mixing salt and sand in water would result in solid sand, and salt water. When poured through a coffee filter, the sand would remain in the filter, while the salt water would flow through. After letting the water evaporate, salt would remain. You will be left with the two separated solids.
Salt will dissolve in water
With a fine mesh sieve.
1. Put the mixture of gravel and salt in water. 2. Salt is water soluble, gravel not. 3. Filter: the salt is in the solution.
Particle size, solubility and magnetism. The iron filings can be separated with a magnet, the salt by disolving in water, and the remaining sand and gravel separated by simple screening.
A simple method is sieving.
with fillter paper
I think road salt it made of salt, gravel and sand. The salf lowers the melting point of the snow/ice, so therefore melting it, and the sand and gravel give a car grip.
we can separate salt and sand by solving the mixture into water salt is soluble but sand is not .
Salt is soluble in water; gravel is separated by filtering the solution or by decantation.Power is not a material.