MixturesMixtures

MixturesMaple 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.

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QuickTime™ and a decompressor

are needed to see this picture.QuickTime™ and a

decompressorare needed to see this picture.

Mixtures

Heterogeneous Mixture

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QuickTime™ and a decompressor

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QuickTime™ and a decompressor

are needed to see this picture.

Homogeneous 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 heterogeneousbecause you CAN

pick out the different components.

These are heterogeneousbecause 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.

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UnsaturatedUnsaturated SaturatedSaturated

solute

solute

solute

solute

solvent

solvent

solvent

solvent

Solutions

In each case, decide which ingredient is the solvent and which is the solute.

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Chocolate Milk

milk

chocolate

Maple Syrup

sugar

water

Coca-Cola

carbon dioxid

e bubble

ssweet liquid

Steel

carbon

iron

solutessolvents

Solutions

milk

chocolate

sugar

water

sweet liquid

carbon dioxid

e bubble

s

carbon

Carbon is a solvent because it is the major

component of steel.

Carbon dioxide is the minor component of

Coca-ColaDid you notice how Did you notice how the solvents are the solvents are usually liquids?usually liquids?

Iron is a solute because it is the minor component of

steel.

iron

Did you notice how the solutes Did you notice how the solutes are often powders?are often powders?

Solutions

carbon dioxid

e bubble

s

Solutions can be mixtures of liquid, gases, and solids.

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Mixtures

Worksheet