During the preparation of lunch on a camping trip, salt accidentally crumbled and mixed with river sand.

During the preparation of lunch on a camping trip, salt accidentally crumbled and mixed with river sand. How can you separate salt from sand? Make a plan for separating this mixture in the field?

When sand and table salt are mixed, an inhomogeneous mixture of substances is formed. This mixture consists of different particles, its composition differs at different points in the volume. The substances in the mixture can be separated using the following methods:

dissolving the mixture in water and settling
filtration
evaporation.

The dissolved mixture is filtered through filter paper, on which sand particles not dissolved in water remain. Then the resulting solution is poured into a cup for evaporation, when heated, the water evaporates, and pure table salt remains at the bottom.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.