What you’ll need?• Small soft drink bottle

• Water

• Food colouring

• 2 tablespoons of

cooking oil

• Dish washing liquid or detergent

Procedure:• Add a few drops of food colouring

to the water.

• Pour about 2 tablespoons of the coloured water along with the 2 tablespoons of cooking oil into the small soft drink bottle.

• Screw the lid on tight and shake the bottle as hard as you can.

• Put the bottle back down and have a look, it may have seemed as though the liquids were mixing together but the oil will float back to the top.

FILTRATION

used to separate an

insoluble solid from a liquid.

The solid remains in the

filter paper and the liquid

goes into the beaker.

The liquid that passes

through is the filtrate.

The substance that is left in

the filter paper is called the

residue.

VIDEO

MECHANICAL SEPARATION

Involves the use of forceps,

sieve, and other similar tools.

Gravel and sand are

separated by picking the

gravel or passing the mixture

into a wire screen. This

process is called sieving.

The use of magnets in

separating sulfur powder and

iron nails is appropriate when

metal is involved.

VIDEO

DECANTATION

Is a method where solids of

a suspension are made to

settle down and the liquid

materials poured off.

VIDEO

CENTRIFUGATION

Is a motor-driven machine thatspeeds up the settling of theprecipitate.

Uses the centripetal forcedeveloped through the rotationof the apparatus.

The rotation brings theprecipitate to the bottom of thetube, then the centrifugate orsupernatant liquid poured off.

VIDEO

DISTILLATION

is the evaporation and condensation of volatile liquids.

It uses a condenser to transform a gas into a liquid.

The more volatile liquid boils and evaporate first, then it is condensed on the cooled area of the set-up.

The distillate is the liquid formed after condensation.

VIDEO

FRACTIONAL DISTILLATION

Is a special type of distillation used to separate a mixture of liquids with different boiling points.

Different liquid boil at different temperatures.

When heated, they boil off and condense at different times.

The apparatus features a fractioning column, which ensures that only the liquid boils at its boiling point will pass through the condenser.

VIDEO

EASY

Direction: Choose the letter of the correct answer.

1. It is a method where solids of a suspension are made to settle down and the liquid material is poured off.

a. Centrifugation

b. Decantation

c. Filtration

2. What process involves the use of forceps, sieve, and other similar tools?

a. Distillation

b. Filtration

c. Mechanical Separation

3. ____________ is the evaporation and condensation of volatile liquids.

a.Distillation

b. Distillate

c. Fractional Distillation

4. It is used to separate an insoluble solid from a liquid.

A .Residue

b. Filtration

c. Filtrate

5. What method uses the centripetal force developed through the rotation of the apparatus?

a. Centrifugate

b. Centrifuge

c. Centrifugation

Directions: Use the describing wheel to summarize the different methods of separating mixtures.

Methods of Separating mixtures & solution

1. Make a list of all

the household chemicals

that you use at home.

Research on the possible

effects of their

components to the

environment.

2. Why is there a need to research and

test the effects of the components of those

substances?

3. How will your knowledge of mixtures and solutions help you

understand the environment?