Question

During science class, while studying mixtures, you mix together table salt and sand. You teacher challenges you to separate the salt from the sand. What property could you use and how would you use it?
A)solubility; Add water to the mixture and dissolve the salt.
B)density; The two will form two layers. Scoop out the top layer.
Eliminate
C)color; Pick out one of the two solids by using color to guide you.
D)particle size; Pour the mixture through a paper filter to separate the two.

Answer 1

A.

The salt will dissolve, while the sand will not. Then you can filter the sand out using filter paper.

Answer 2

The answer is A. Dissolve salt in water. Strain solution. Sand stays in strainer while salt solution passes through. Evaporate water in salt solution to retrieve salt.