EVERYDAY SCIENCE

Detailed explanation-1: -Saltwater is a homogeneous mixture, or a solution. Soil is composed of small pieces of a variety of materials, so it is a heterogeneous mixture. Water is a substance. More specifically, because water is composed of hydrogen and oxygen, it is a compound.

Detailed explanation-2: -A solution is a mixture that is the same or uniform throughout. Think of the example of salt water. This is also called a “homogenous mixture.” A mixture that is not a solution is not uniform throughout.

Detailed explanation-3: -Ordinary table salt is called sodium chloride. It is considered a substance because it has a uniform and definite composition.

Detailed explanation-4: -Saltwater is a mixture because it is made up of more than one substance. It is made of salt dissolved in water. Saltwater is called a homogeneous mixture because the salt is equally distributed throughout the mixture. Salt is the solute and water is the solution in which the solute is dissolved.

Detailed explanation-5: -Saltwater is a homogeneous mixture because it is a mixture which can be separated, was not formed by a chemical reaction, and it has a uniform composition. If you look at saltwater, every part of it would appear to be exactly like every other part.