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Describe techniques in separating mixtures such as decantation,

Total questions: 116

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

James wants to seperate the salt from the water in his glass of salt water. What seperation method should James use?

a)

Magnets

b)

Evaporation

c)

Filter

d)

Using his hands

2.

Nicole wants to dissolve a substance in water. Which substance will dissolve the easiest?

a)

Rocks

b)

sugar

c)

pepper

d)

sand

3.

What item could a magnet separate from a mixture of garbage?

a)

Old metal fork

b)

An apple core

c)

Pieces of paper

d)

A juice can

4.

What mixture could you use this tool to best separate that mixture?

a)

Sugar and Salt

b)

Sand and rocks

c)

Apples and grapes

5.
Sand and clay is an example of a mixture of solids.
a)
True
b)
False
6.
A mixtures is a combination of two or more____________ in which no new kinds of matter are formed.
a)
 subtances
b)
parts
c)
leaves
d)
pebbles
7.
Lemonade is a special mixture called a 
a)
substance
b)
solution
c)
plasma
d)
ingredient
8.
Sand and gravel may be separated from each other through using..
a)
a filter funnel
b)
a sieve
c)
an evaporating basin
d)
a distillation
9.
Which one of the following techniques would best be used to separate soil and water?
a)
Decanting
b)
distillation
c)
Filtration
d)
Chromatography
10.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
11.
To separate iron filings and sulfur what method should you use?
a)
filtration 
b)
sorting
c)
magnet
d)
boiling
12.
Which of the following is a method of separating solutions?
a)
hand separation
b)
filtering
c)
decanting
d)
evaporation 
13.
How would you separate a mixture of sand and salt? 
a)
Mix them with water and let the water evaporate
b)
Mix them with water, pour the mixture through a sieve, then let the water evaporate
c)
Heat the sand and salt mixture for 5 minutes, then let it cool
d)
I would not do any of these because none of these options would work
14.
Which one of the following is NOT a mixture?
a)
Sugar
b)
Paint
c)
Crude oil
d)
Air
15.

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

a)

Filter

b)

Screen

c)

Magnet

d)

Evaporation

16.

Sand and gravel may be separated from each other through using..

a)

a filter funnel

b)

a sieve

c)

an evaporating basin

d)

a distillation

17.

The best way to separate trail mix would be:

a)

filter

b)

by hand

c)

sieve

d)

evaporation

18.

What tool is this?

a)

sieve

b)

filter

19.

This type of paper allows liquid to pass through it. What tool is it?

a)

sieve

b)

filter

20.

Which of these materials are attracted to a magnet

a)

iron filings

b)

sand

c)

rocks

d)

wood

21.

If I pour sand and water onto a filter, what will happen?

a)

water and sand will go through the filter

b)

sand will get caught in the filter, water will pass through

c)

both sand and water will get caught in the filter

22.

This method is a technique used in separating a less-dense substance from a denser one.

a)

decantation

b)

evaporation

c)

distillation

d)

filtration

23.

What method of separating mixtures is shown in the picture?

a)

filtration

b)

distillation

c)

physical manipulation

d)

use of magnet

24.

This method is used to separate metals from non metals.

a)

use of magnet

b)

physical manipulation

c)

sieving

d)

chromatography

25.

This method is used in separating soluble solid from a liquid such as salt from water.

a)

evaporation

b)

distillation

c)

decantation

d)

filtration

26.

What property of glass makes it a popular material for manufacturing drinking containers?

a)

it is brittle

b)

it is transparent

c)

it is heat proof

d)

it can be melted

27.

What property of steel makes it a good construction material?

a)

it is rigid and strong

b)

it can be stretched

c)

it has luster

d)

it is a conductor of heat

28.

What are synthetic products?

a)

products made from natural materials

b)

products made from manufactured products instead of natural materials

c)

products that have natural properties

d)

products made from raw materials

29.

Which of the following methods is used to separate the colors in food dyes?

a)

sieving

b)

evaporation

c)

chromatography

d)

decanting

30.

Which of the following pairs of separation techniques will both separate sand from a mixture of salt and water?

a)

decanting and distillation

b)

chromatography and evaporation

c)

decanting and filtration

d)

distillation and evaporation

31.

Which process is involved in the water cycle?

a)

decantation

b)

distillation

c)

filtration

d)

evaporation

32.

Your mother used a clean cloth to separate the shredded coconut meat from the milk. What process did she use to separate the mixture?

a)

distillation

b)

sedimentation

c)

filtration

d)

winnowing

33.

Which tool should be used to separate iron nails from toothpicks?

a)

piece of cloth

b)

filter paper

c)

strainer

d)

magnet

34.

A device that traps some substance and allows others to pass through.

a)

decantation

b)

evaporation

c)

filter

d)

magnet

35.

A separating tool that has many holes of the same size.

a)

filter

b)

strainer

c)

magnet

d)

spoon

36.

Suppose you are sweeping the floor of a wood shop. You have a pile of sawdust, little bits of wood, and some iron nails. You want to save the nails and throw out the rest, but picking all the nails one by one would take a lot of time. Is there another way? Explain. (5pts.)

4 lines
37.

Magnetic separation is the process of separating components of mixtures by using

a)

sieve

b)

magnets

c)

magnifier

38.

Ø The World’s Largest Magnet-weight about _______ tons was developed at Bhabha, Atomic Research Center, India

a)

5000

b)

50,000

c)

67000

39.

________ Faraday changed the world with magnet through his discovery of electromagnetism that leads to the invention of the first electric motor and electric generator.

a)

Albert

b)

Vincent

c)

Michael

40.

The first magnet was found in Northern Greece called ________ about 4,000 years ago by a Cretan shepherd named Magnes.

a)

Magnesia

b)

Magnets

c)

Magno

41.

_________is a device containing tiny holes and separates elements or materials from other materials

a)

Sieve

b)

funnel

c)

container

42.

It refers to the materials left or retained in the sieve.

a)

larger particles

b)

medium particles

c)

smaller particles

43.

Which of the following mixtures can be separated by sieving?

a)

A. Seawater

b)

B. Oil and water

c)

C. Chalk and chalk dust

d)

D. Paper clips and rubber bands

44.

Which of the following techniques in separating mixtures uses a sieve?

a)

A. Decantation

b)

B. Evaporation

c)

C. Filtration

d)

D. Sieving

45.

What happens to the sand after sieving the mixture of sand and gravel?

a)

A. Retain in the sieve

b)

B. Passes through the sieve

c)

C. Forms a precipitate in the sieve

d)

D. Becomes mixed with the larger particles in the sieve

46.

Which tool is used in sieving?

a)

A. a magnet

b)

B. a dipper

c)

C. a sieve

d)

D. a fork

47.

Given a mixture of rice and corn grains, which of the two particles can pass easily through the sieve?

a)

A. corn grains

b)

B. rice grains

c)

C. both corn and rice grains

d)

D. neither corn nor corn grains

48.

________ is the process of separating an insoluble solid from

the liquid substance by allowing the liquid to pass through a porous material.

a)

Filtration

b)

sieving

c)

decantation

49.

Which of the following processes is used to separate insoluble particles from liquids?

a)

A. Drying

b)

B. Sieving

c)

C. Filtration

d)

D. Extraction

50.

Which of the following is an example of mixture which can be separated using filtration?

a)

A. Boiling a pot of water

b)

B. Filling a balloon with air

c)

C. Freezing water to make ice

d)

D. Removing milk from coconut

51.

Which one of the following techniques would best be used to separate mud and water?

a)

A. Sieving

b)

B. Filtration

c)

C. Evaporation

d)

D. Using magnet

52.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

53.

What kind of mixture is shown in the picture?

a)

Homogeneous

b)

Heterogeneous

54.
M&M's is an examples of a
a)
homogeneous mixture
b)
heterogeneous mixture
55.
Salad is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
56.
Coloured water is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
57.
Soil is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
58.

How to separate pebbles and water?

a)

Decantation

b)

Filtration

c)

Evaporation

d)

Sieving

59.

How to separate salt and water?

a)

Decantation

b)

Filtration

c)

Evaporation

d)

Sieving

60.

How to separate cooked noodles and water?

a)

Decantation

b)

Filtration

c)

Evaporation

d)

Sieving

61.

How to separate meat and sauce?

a)

Decantation

b)

Filtration

c)

Evaporation

d)

Sieivng

62.

How to separate oil and water?

a)

Decantation

b)

Distillation

c)

Magnetic Attraction

d)

Sieving

63.

How to separate needles and toothpicks?

a)

Decantation

b)

Distillation

c)

Magnetic Attraction

d)

Sieving

64.

How to separate sugar and water?

a)

Decantation

b)

Distillation

c)

Filtration

d)

Evaporation

65.

How to separate tea leaves and tea liquid?

a)

Decantation

b)

Evaporation

c)

Sieving

d)

Magnetic Attraction

66.

How to separate coffee beans and coffee liquid?

a)

Distillation

b)

Filtration

c)

Evaporation

d)

Sieving

67.

How to separate iron filings from flour?

a)

Distillation

b)

Evaporation

c)

Filtration

d)

Magnetic Attraction

68.

Which of the following is not a benefit of separating mixtures?

a)

Disease Discovery and Treatment

b)

Useful Woods for Furniture

c)

Useful Metals from Ores

d)

By - products of Milk

69.

Which of the following is the correct process of water treatment of Ipo and Angat Dams?

a)

Filtration, Flocculation, Pre - chlorination, Rapid Mixing, Screening, Sedimentation

b)

Sedimentation, Screening, Rapid Mixing, Pre - chlorination, Flocculation, Filtration

c)

Screening, Pre - chlorination, Rapid Mixing, Flocculation, Sedimentation, Filtration

d)

Sedimentation, Screening, Filtration, Pre - chlorination, Rapid Mixing, Flocculation

70.

Which process uses gravity to separate components of mixture?

a)

crushing

b)

flattening

c)

froth floatation

d)

panning

71.

It is a technique in which an insoluble solid is separated from a liquid.

a)

Filtration

b)

Sieving

c)

Decantation

d)

Use of Magnets

72.

Substances that are made up of ONLY one type of atom (element) or compound.

a)

Colloid

b)

Heterogeneous mixture

c)

Pure substance

d)

Suspension

e)

Homogeneous mixture

73.

A _________ is made up of two or more substances that are together in the same place but ARE NOT chemically combined.

a)

Pure substance

b)

Mixture

c)

Solution

d)

Suspension

74.

Identify which images are PURE SUBSTANCES! (Check all that apply) : )

a)
b)
c)
d)
e)
75.

The substances in this mixture DO NOT blend smoothly throughout, and the individual substances that compose the mixture can be detected or seen.

a)

Homogeneous mixture

b)

Heterogeneous mixture

c)

Pure substance

d)

Suspension

76.

___________ are mixtures with large particles. The particles suspend in the substance and settle/float or can be filtered out of the mixture.

a)

Pure substances

b)

Suspensions

c)

Solutions

d)

Colloids

77.

Solubility is __________________________________.

a)

the amount of solute that can be dissolved by the solution

b)

the amount of solvent that can be dissolved by the solute.

c)

the amount of solute that can be dissolved by the solvent.

78.

In a SOLUTION, the ___________ is the substance to be dissolved.

a)

Solubility

b)

Solvent

c)

Solute

d)

Solution

e)

Suspension

79.

If you had a mixture of rocks and sand and needed to separate them what method would work best?

a)

hand picking

b)

sieving

c)

magnetism

d)

decantation

80.

If you combine metal shaving with sand, there is No way you can separate them.

a)

true

b)

false

81.

The science teacher accidentally combine sliced apples and chopped pears. What method can be sed to separate the mixture?

a)

decantation

b)

sieving

c)

filtration

d)

hand picking

82.
It is possible to separate a mixture and get the original materials back.
a)
True
b)
False
83.
When is handpicking used as a separation technique?
a)
To separate magnetic materials from nonmagnetic materials
b)
To separate a mixture of an insoluble solid and a liquid
c)
To separate water and salt
d)
To separate a mixture of solids with different sizes
84.
What is the process used to separate a mixture of solids with different sizes?
a)
Magnetism
b)
Sieving
c)
Handpicking
d)
Filtering
85.
What is the process used to separate a mixture of sand and water?
a)
Sieving
b)
Magnetism
c)
Handpicking
d)
Filtering
86.
When is sieving used as a separation technique?
a)
To separate magnetic materials from nonmagnetic materials
b)
To separate water and salt
c)
To separate a mixture of an insoluble solid and a liquid
d)
To separate a mixture of solids with different sizes
87.
When is the process of sedimentation and decanting used?
a)
When a mixture of oil and water needs to be separated
b)
When particles are large enough to be seen clearly
c)
When two liquids have different densities
d)
When two liquids need to be decanted
88.
What is the process of evaporation used for?
a)
Separating a mixture of oil and water
b)
Separating two liquids with different densities
c)
Removing water from a solution
d)
Separating pebbles from rice
89.
What is the process used to separate a mixture of an insoluble solid and a liquid?
a)
Handpicking
b)
Sieving
c)
Magnetism
d)
Filtering
90.
What is the process used to separate water and salt?
a)
Evaporation
b)
Handpicking
c)
Filtering
d)
Sieving
91.
What is the simplest method of separation of substances?
a)
Filtering
b)
Handpicking
c)
Evaporation
d)
Sieving
92.
When is filtering used as a separation technique?
a)
To separate a mixture of an insoluble solid and a liquid
b)
To separate water and salt
c)
To separate a mixture of solids with different sizes
d)
To separate magnetic materials from nonmagnetic materials
93.
What is the process used to separate a solid that has dissolved in a liquid and cannot be separated by filtration?
a)
Evaporation
b)
Handpicking
c)
Sieving
d)
Filtering
94.
When is magnetism used as a separation technique?
a)
To separate water and salt
b)
To separate a mixture of solids with different sizes
c)
To separate a mixture of an insoluble solid and a liquid
d)
To separate magnetic materials from nonmagnetic materials
95.
In which scenario is magnetism used to separate mixtures?
a)
Separating a mixture of oil and water
b)
Separating two liquids with different densities
c)
Separating pebbles from rice
d)
Separating particles based on their size
96.
Firefighters' smoke masks use evaporation to clean the dirty air.
a)
False
b)
True
97.

Which of the following colloids is an example of a sol?

a)

A. whipped cream

b)

B. milk

c)

C. froth

d)

D. paint

98.

What phenomenon occur when dispersed colloid particles scatter light?

a)

A. Tyndall effect

b)

B. shaft effect

c)

 C. miscible

d)

D. immiscible

99.

 How would you differentiate a colloid mixture from a solution?

a)

A. The colloid's particles are larger.

b)

B. The colloid's particles are smaller.

c)

C. A colloid has a positive charge.

d)

D. A colloid has a negative charge.

100.

This process involves separating solid particles from a liquid substance using a piece of cloth.

a)

A. decantation

b)

B. filtration

c)

C. evaporation

d)

D. using a magnet

101.

Which material will you use if you’re going to make coffee out of grind coffee for your visitors?

a)

A. filter paper

b)

B. mesh wire

c)

C. colander

d)

D. strainer

102.

 In filtering technique of separating mixtures, what type of material passes through a filter paper or cloth?

a)

A. liquid

b)

B. solid

c)

C. gas

d)

D. plasma

103.

Which of the following statement is correct about separating mixture through a filter?

a)

A. The liquid passes through sieve but the solid particles are left behind.

b)

B. Insoluble substances from a liquid can be separated by using a filter.

c)

C. The liquid cannot passed in a filter.

d)

D. All of the above

104.

This kind of technique in separating mixtures is used in separating fine sand from rocks in the mixtures of sand and gravel.

a)

A. picking

b)

B. filtering

c)

C. sieving

d)

 D. evaporation

105.

Divine wants to separate mixtures of cornstarch from small stones that she will be using in making maja blanca. What kind of material will she use to separate it?

a)

A. filter cloth

b)

B. filter paper

c)

C. towel

d)

 D. strainer with small holes

106.

Chloe accidentally mixed the grind/ground rice that she will be using in making “bebingka” or rice cakes and “puto” with pebbles while looking for her other ingredients.How will Chloe removes the pebbles from the grind/ground rice?

a)

A. She will use filter paper to remove it.

b)

B. She will use evaporation process to remove it.

c)

C. She will use decantation process to remove it.

d)

D. She will use a sieve to remove it.

107.

What property can be the basis for using sieve in separating components of a mixture?

a)

A. boiling point

b)

B. size of particle

c)

C. ability to dissolve

d)

D. magnetic property

108.

. It is a process of separating mixtures which involves heating leaving the solid residue in a container.

a)

A. evaporation

b)

B. distillation

c)

C. precipitation

d)

D. sedimentation

109.

 It is the main factor that causes evaporation process in separating mixtures.

a)

A. water

b)

B. smoke

c)

C. heat

d)

D. light

110.

Princess accidentally spill a glass of water in the salt container and she is thinking with of a solution on how she’s going to recover salt from water. What will Princess do to return the salt to its original phase?

a)

A. She will wrap it with newspaper tightly

b)

C. She will hide it in a dark corner

c)

B. She will throw it away in the waste can

d)

D. She will boil the solution

111.

While boiling water in a kettle, Gwayne noticed that there are smoke coming from the spout of a kettle. He asked his mother, “Why did the  smoke rise upward”? What do you think will be the mother’s answer?

a)

A.  because the water reached its cooling point

b)

B. because the water reached its boiling point

c)

C. because the water is heated and became water vapor

d)

D. because the water is freezing

112.

Lester had noticed that the amount of water in a container with a plant becomes less as the days goes by. What do you think is the reason of decreasing amount of water in a container?

a)

A. Some insects sipped the water.

b)

B. Water in the container was not changed.

c)

C. Water evaporated because of heat.

d)

D. The plant has a stem.

113.

Which of the following examples undergo evaporation process?

a)

A. a pail of water under the heat of the sun

b)

B. brushing your teeth after meal

c)

C. ironing clothes every weekend

d)

D. listening to the radio

114.

 This method is a technique used in separating a less-dense substance from a denser one

a)

A. evaporation

b)

B. picking

c)

C. decantation

d)

D. all of the above

115.

 Which of the following mixtures can be separated using decantation method?

a)

A. sugar and milk

b)

B. water in oil

c)

C. mixed nuts

d)

D. vegetable salad with dressing

116.

 How can decantation method be useful to everyday life?

a)

A. it help us to become more productive

b)

B. it gives us satisfaction to our everyday living

c)

C. it just an ordinary technique

d)

D. it helps us to make our everyday living more efficient and easier

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