Salt will dissolve in water
The salt will dissolve. I'm not sure about the sand though. The gravel is just little pieces of rock, so it won't disslove. Try it and see if the sand dissolves, because I don't know if it does!
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.
To separate sand, gravel, and water, you can use a filtration method. Pour the mixture through a filter such as a sieve or cloth to separate the sand and gravel from the water. The water will pass through while the sand and gravel remain on the filter.
Salt will dissolve in water, and the more heat you add, the more salt you can dissolve, i.e. boiling the water. Sand however, is not water soluble, therefore, it will not dissolve. Let the water boil and dissolve the salt, then drain the water over a semi-permeable cloth so the sand is trapped and the water (and salt) drains through.
first mix them in water. sand wont dissolve in water. so it get distilled and settle down. but salt dissolves in water. after sand gets settled, gently pour off the water. the remaining is salt solution. when its heated water get evaporated and the salt remains.
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.
Water and a filter would work. Pour the salt/sand into water and the salt will dissolve. Pour the mixture into a filter and the sand will be trapped in the filter. Evaporate the water and the salt will remain.
Assuming that you're trying to separate the sand and the salt: adding water will dissolve the salt but it will keep the sand. So the sand can be separated by filtration and then the water can be evaporated leaving behind plain salt.
Water does not filter particles: it is the other way around. Pebbles, gravel, and sand are used to filter water, with the smallest particle size (sand) filtering the most particulates from the water, whether it is salt water or fresh water.
If you dissolve the salt and the sand in water the sand will stay beind and the salt would dissappear. But if you want the salt back you can evaporate it off, by boiling the water. (with the dissolved salt in it)
To separate a mixture of sand, iron filings, and salt, you can use a magnet to remove the iron filings, then dissolve the salt in water and filter the sand out. Lastly, evaporate the water to obtain the salt.
To form a sand and water solution, you can simply mix sand and water together in a container and stir until the sand is evenly distributed within the water. The sand particles will not dissolve but will be suspended in the water, creating a mixture.