Mixtures

Maple syrup is a mixture of water and naturally-occurring sugars (sucrose, fructose, and glucose). The sugars are dissolved in the water, so you can’t see them. When you look at maple syrup, you cannot see the different components of the maple syrup. Mixtures where only one phase is visible are called homogeneous mixtures. In a homogeneous mixture, the particles are evenly distributed.

Mixtures When you pour maple syrup on your pancakes, you create a heterogeneous mixture. A heterogeneous mixture is a mixture where the different phases are visible. In a heterogeneous mixture, the particles are unevenly distributed. Even after you have poured the maple syrup, you can still see pick out the maple syrup from the pancakes.

Mixtures Decide if each food item is a homogeneous or heterogeneous mixture.

Mixtures Heterogeneous MixtureHomogeneous Mixture These are homogeneous because you cannot pick out the different components. These are homogeneous because you cannot pick out the different components. These are heterogeneous because you CAN pick out the different components. These are heterogeneous because you CAN pick out the different components.

Solutions Maple syrup is a mixture of water and naturally-occurring sugars (sucrose, fructose, and glucose). The sugars are dissolved in the water. When one substance is dissolved in another substance, we call the mixture a solution. The substances that get dissolved are called solutes and the substance that does the dissolving is called the solvent. Solute (eg: particles of sugar) Solvent (eg: water)

Solutions Solutions are homogeneous mixtures, because you cannot see the different phases when you look at it. When a solution has dissolved the amount solute it possibly can, the solution is called a saturated solution. Before that point is reached, we call it an unsaturated solution. Unsaturated Saturated

solute solvent Solutions In each case, decide which ingredient is the solvent and which is the solute. PULL DOWN Chocolate Milk mil k chocolat e Maple Syrup suga r wate r Coca-Cola carbon dioxide bubbles sweet liquid Steel carbo n iron

solutes solvents Solutions mil k chocolat e suga r wate r sweet liquid carbon dioxide bubbles carbo n Carbon is a solvent because it is the major component of steel. Carbon dioxide is the minor component of Coca- Cola Did you notice how the solvents are usually liquids? Iron is a solute because it is the minor component of steel. iron Did you notice how the solutes are often powders?

Solutions carbon dioxide bubbles Solutions can be mixtures of liquid, gases, and solids.

Mixtures Worksheet