To provide students with visual impairments the opportunity to create heterogeneous and homogeneous mixtures and solutions, identify the differences, and to explore the concepts of concentration and dilution
Mixtures contain more than one kind of particle, (atoms, molecules, and or compounds). A heterogeneous mixture contains particles that are not the same, can be separated by physical means, and are not distributed the same throughout the mixture. Trail mix is a good example. In homogeneous mixtures and solutions the particles are distributed evenly throughout the mixture and are not easily separated. A thoroughly mixed glass of lemonade is a good example. In science the lemonade powder, or whatever is being dissolved, is referred to as a solute. The substance doing the dissolving is called a solvent. In the lemonade solution, water is the solvent. The amounts of solvent and solute can be changed to create various concentrations of the solution from dilute to concentrated, or even over saturated, where no more solvent will dissolve.