SEPARATNG HETEROGENEOUS MIXTURE Flashcards
can be done to separate the components of a heterogeneous mixture with big, visible components.
Manual picking
is a method used by farmers to separate husks from rice grains.
Here the mixture is placed in a flat pan or bilao and tossed in the air. The
rice grains fall on the pan as the husks are blown by the wind.
Winnowing
is done by passing through a layer of holes, called a sieve. This separates the components by size.
Sieving
Some heterogeneous mixtures can be separated by using a _____________. This is
applied in separating metals, such as iron filings, from nonmetallic objects.
MAGNETS
is a process of separating the solid from
Filtration
The solid collected in the filter paper is called ________________
residue
The liquid that passed through the filter paper is called ____________
filtrate
is a process by which suspended solids separate due to gravity.
Sedimentation
is a process by which the liquid is gently poured out, leaving the solids that settle at the bottom of the container.
Decantation
Decantation for liquid-liquid mixtures may be done using a _______________
separatory funnel.
can be used to separate suspensions by rotating the mixture at very high speeds, pushing the solids to the bottom of the
container.
CENTRIFUGATION
choose your answer below
MANUAL PICKING
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
f. separating components using the hands or tongs
choose your answer below
WINNOWING
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
e. separating grains from husks
choose your answer below
FILTRATION
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
g. separating the liquid and the solid by passing the mixture
choose your answer below
DECANTATION
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
b. separation by tilting the container and removing the liquid on top
choose your answer below
SIEVING
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
d. separating solid mixtures with different sizes
choose your answer below
USE OF MAGNET
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
c. separating metals from other materials
choose your answer below
CENTRIFUGATION
a. using a high-speed rotating machine to separate components
b. separation by tilting the container and removing the liquid on top
c. separating metals from other materials
d. separating solid mixtures with different sizes
e. separating grains from husks
f. separating components using the hands or tongs
g. separating the liquid and the solid by passing the mixture
a. using a high-speed rotating machine to separate components
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
colored clothes from white clothes = winnowing
manual picking
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
chalk and water = filtration
YES
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
staple wires and sand = using a sieve
magnet
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
rock salt and cornstarch = winnowing
sieving
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
rice grains and water = sedimentation and decantation
filtration
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
urine components = centrifugation
YES
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
boiled noodles in water = filtration
YES
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
sand and gravel = decantation
sieving
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
baby oil and water = evaporation
decantation
Write yes if the separating technique is appropriate for the given mixture. If not,
identify what separation technique is applicable to separate the components of
the mixture.
pineapple chunks from pizza = manual picking
YES
Name some of the techniques used in the following industrial processes.
manufacturing artificial food colorants safe for consumption
recrystallization,
filtration
Name some of the techniques used in the following industrial processes.
counting blood cells in medical tests
centrifugation
Name some of the techniques used in the following industrial processes.
separating different components of cells
centrifugation
Name some of the techniques used in the following industrial processes.
removing metals from recyclables
use of magnet
______1. Which is not a method for separating solid-liquid heterogeneous mixtures?
a. evaporation
b. using a sieving tool
c. filtration
d. decantation
Answer: a. evaporation. As two visible phases are present, there is no need to boil off the solvent. The last three choices may be used instead.
______2. Which cannot be separated by manual picking?
a. oatmeal with fruit slices
b. cereal mix
c. oil in water
d. mixed vegetables
Answer: c. oil in water. Oil and water can be separated easier by decantation using a
separatory funnel. The rest can be manually separated due to the big, visible components.
______3. What can be used to separate metals and plastics in the garbage?
a. magnet
b. filter paper
c. sieve
d. pan
Answer: a. magnet. Taking advantage of the physical properties of each component is a key
tool in separation. Magnets will attract the metals but not the plastics.
______4. Which separation technique takes advantage of the different particle sizes in
solids?
a. using a sieving tool
b. filtration
c. winnowing
d. decantation
Answer: a. using a sieving tool. Sieving takes into account the difference in the particle size of the solids in a solid-solid mixture. This is used in separating gravel and sand in preparing cement.
______5. What do you call a layer of holes that allows specific sizes of particles to pass?
a. separatory funnel
b. pan
c. sieve
d. magnet
Answer: c. sieve. A sieve is used to separate solids with different sizes. It is haracterized by the size of the holes.
______6. Which is a method for separating a solid-liquid heterogeneous mixture by passing
through a particular material?
a. decantation
b. centrifugation
c. filtration
d. winnowing
Answer: c. filtration. The first three choices are for separating solid-liquid heterogeneous mixtures. The first one makes use of a filtering material.
______7. Which refers to the process by which suspended particles eventually separate into
layers by gravity?
a. decantation
b. filtration
c. sedimentation
d. chromatography
Answer: c. sedimentation. Sedimentation is a process by which heavier and denser
components settle at the bottom of the container. This is true for sand in water when allowed to rest.
______8. Which should be used for the easier decantation of oil and water?
a. separatory funnel
b. beaker
c. flask
d. stirring rod
Answer: a. separatory funnel. A separatory funnel is a specialized glassware for the
decantation of two immiscible liquids. It has a stopcock to control the flow of the liquid.
______9. Which of these techniques makes use of centrifugal force?
a. centrifugation
b. decantation
c. filtration
d. sedimentation
Answer: a. centrifugation. A centrifuge spins the mixture such that the dense materials are pushed to the bottom of the container. It is the centrifugal force that pushes down the dense materials.
______10. Which is a separation technique wherein gentle pouring is involved?
a. filtration
b. chromatography
c. evaporation
d. decantation
Answer: d. decantation. Decantation is done after sedimentation. It is the removal of the liquid component by slow and gentle pouring.
