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Mixtures and Separation techniques

Total questions: 103

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

True or false: Magnets can be used to separate iron filings from sand

a)

True

b)

False

2.

True or false: Sieving can be used to separate a mixture with two solid components of different sizes

a)

True

b)

False

3.

The air around us is an example of a mixture

a)

True

b)

False

4.

When sugar dissolves in a glass of warm water, the sugar is the_________

a)

Solute

b)

Solvent

5.

What separation technique did you use to separate the iron filings?

a)

Sieving

b)

Filtration

c)

Magnetic separation

6.

Which of the following substances are Insoluble?

a)

Salt

b)

Sugar

c)

Sand

d)

Coffee

7.

The image shows a mixture of concrete nails and saw dusts. What technique is best to use to separate the nails from the saw dusts?

a)

sieving

b)

chromatography

c)

decantation

d)

magnetic separation

8.

How could you seperate salt that has dissolved in water?

a)

FIltration

b)

Evaporation

c)

Sieving

d)

Magnetic separation

9.

When foods are dissolved in our stomach through acids. Are the stomach acids the solvent or solute?

a)

Solvent

b)

Solute

10.

Which of the following is NOT a mixture?

a)

milk

b)

lemonade

c)

vegetable salad

d)

carbon

11.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

12.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

13.

True or False: Elements and compounds are pure substances.

a)

True

b)

False

14.

Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)

a)
b)
c)
d)
15.

Solutions are ___________ mixtures.

a)

Solid

b)

Homogenous

c)

Heterogeneous

d)

Gas

16.
Max is hungry and he prepares cereal with milk. This is an example of a: 
a)
Homogeneous mixture
b)
Heterogeneous mixture
17.

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

a)

Heterogeneous mixture

b)

Pure substance

c)

Suspension

d)

Homogeneous mixture

18.

Which of the following is classified as a pure substance?

a)

Lemonade

b)

Fruit punch

c)

ketchup

d)

Hydrogen

19.
What is matter?
a)
Anything that has mass and occupies space
b)
Anything that has mass
c)
Anything that is made of air
d)
ALL of them 
20.
Which of the following is a pure substance? 
a)
Water
b)
Sugar
c)

Gold

d)
ALL of them
21.

Which of the following is NOT a mixture?

a)

milk

b)

lemonade

c)

vegetable salad

d)

carbon

22.

Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)

a)
b)
c)
d)
23.
Max is hungry and he prepares cereal with milk. This is an example of a: 
a)
Homogeneous mixture
b)
Heterogeneous mixture
24.
What are the two types of Mixtures
a)
Elements and Subatomic Particles
b)
Protons and Electrons
c)
Atoms and Compounds
d)
Homogenous and Heterogeneous
25.

What type of mixture does this diagram represent?

a)

Homogeneous

b)

Heterogeneous

26.

Which method can you use to separate sand and iron filings?

a)

Distillation

b)

Magnetism

c)

Filtration

d)

Evaporation

27.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
28.

A mixture that contains two or more substances uniformly combined

a)

heterogeneous mixture

b)

homogeneous mixture

c)

suspension

d)

colloid

29.

Matter is classified in...

a)

Elements & Compounds

b)

Homogeneous & Heterogeneous

c)

Colloids & Suspensions

d)

Pure substances & Mixtures

30.
a)
heterogeneous mixture
b)
homogeneous mixture
31.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
32.

This separation method is called...

a)

Magnetism

b)

Filtration

c)

Distillation

d)

Evaporation

33.

Identify the substance in box B.

a)

element

b)

compund

c)

mixture

34.

Identify the substance in box D.

a)

element

b)

compound

c)

mixture

35.

Identify the substance in box Y.

a)

element

b)

compound

c)

mixture

36.

Identify the substance in box W.

a)

element

b)

compound

c)

mixture

37.

Identify this substance.

a)

element

b)

compound

c)

mixture

38.

Identify this substance.

a)

element

b)

compound

c)

mixture

39.

Identify this substance.

a)

element

b)

compound

c)

mixture

40.

What is the difference between a compound and a mixture?

a)

one is made of only 1 element, the other is made of several elements

b)

a mixture does not have a chemical formula

c)

a compound can be made many different ways

41.

is a mixture

a)

carbon

b)

air

c)

water

d)

oxygen

42.

What is in the picture?

a)

Element

b)

Compound

c)

Mixture

d)

Atom

43.

What is in the picture?

a)

atom

b)

compound

c)

mixture

d)

element

44.

Which picture represents compounds?

a)

A

b)

B

c)

C

d)

D

45.

Mixtures can be made from which of the following?

a)

Solids

b)

Liquids

c)

Gasses

d)

All of the above

46.

Sand and Water is an example of a _______________ because it can be easily separated and the sand and water maintain their properties when combined.

a)

solution

b)

mixture

c)

substance

d)

matter

47.
In a solution, the ____________________ is the substance that dissolves.
a)
Concentration
b)
Solute
c)
Solvent
d)
Solution
48.
In a solution, the ____________________ is the substance in which the solute is being dissolved.
a)
Concentration
b)
Solute
c)
Solvent
d)
Solution
49.

A type of mixture where one substance dissolves into another substance, such as sugar into water, is called a:

a)

alloy

b)

colloid

c)

solution

d)

suspension

50.
What substance is often called the "universal solvent"?
a)
water
b)
ethanol 
c)
salt 
d)
blood
51.

Mixtures can be separated .......................

a)

Physically

b)

Chemically

52.

If a solid doesn't dissolve in a liquid we say that it is

a)

Soluble

b)

A solvent

c)

Insoluble

d)

Undissolveable

53.

A pure substance that cannot be broken down into any other substance.

a)

Elements

b)

Compounds

c)

Mixtures

54.

A(n) ______________ is formed when two or more elements chemically combine.

a)

Compound

b)

Element

c)

Mixture

55.

H2O

a)

Element

b)

Compound

c)

Mixture

56.

The process of blending the ingredients when making a birthday cake would be an example of a(n)

a)

Element

b)

Compound

c)

Mixture

57.

It is fairly easy to separate a mixture.

a)

Yes

b)

No

58.

Two or more physically combined substances form

a)

a compound.

b)

an acid.

c)

an element.

d)

a mixture.

59.

What is an example of a mixture?

a)

Table salt

b)

Water

c)

Oxygen

d)

Air

60.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
61.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
62.
What is salad?
a)
element
b)
compound
c)
mixture
63.
Is water an element or a compound?
a)
Element
b)
Compound
64.
A compound is a molecule consists of 2 or more ________.
a)
cells
b)
atoms
c)
elements
d)
mixtures
65.
Carbon Dioxide is a ______ 
a)
compound 
b)
element 
c)
mixtures 
d)
Battle of Bunker Hill 
66.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
67.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
68.

seawater is a compound

a)

true

b)

false

69.

a mixture consist of 2 or more components p (a)   mixed together.

70.

a s (a)   is formed when undissolved solid remains in the liquid mixture

71.

When the particles in a solid gain enough energy to become a liquid we call this process______

a)

Freezing

b)

Melting

c)

Boiling

d)

Sublimation

72.

Which State of Matter changes its volume easiest?

a)

Solid

b)

Liquid

c)

Gas

73.

The water that sticks to the outside of a cold can of coke is an example of ______.

a)

Melting

b)

Evaporation

c)

Freezing

d)

Condensation

74.

What kind of state of matter are can be amorphous?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

75.

Pressure is the result of

a)

The formation of crystals.

b)

The average kinetic force.

c)

particle in a gas running into the side of the container.

d)

The reason Mr. Greene is bald.

76.

When the tempature of a gas increases and the pressure remains constant (does not change), what happens to the volume?

a)

Volume increases

b)

Volume decreases

c)

Volume does not change

d)

It gets colder

77.

This diagram shows a substance in what state?

a)

Gas

b)

Liquid

c)

Solid

d)

Plasma

78.

A liquid's resistance to flowing is called ______?

a)

Pressure

b)

Volume

c)

Surface Tension

d)

Viscosity

79.

Particles in a liquid move more than particles in a gas

a)

True

b)

False

80.

Snow can disappear even though the temperature remains below freezing because of _______

a)

Melting

b)

Boiling

c)

Sublimation

d)

Surface Tension

81.

When you do a belly flop into the pool, it hurts because of _____

a)

Surface Tension

b)

Polarity Shift

c)

Chemical Bonding

d)

Pressure

82.

What is it called when a solid reaches a specific temperature and becomes a liquid

a)

Liquification

b)

Melting Point

c)

Boiling Point

d)

Charles's Law

83.

When you push the lever down on a bicycle pump what happens to the volume and pressure of the gas inside.

a)

Volume goes down and Pressure goes up

b)

Volume goes up and Pressure goes up

c)

Volume stays the same and Pressure Stays the same

d)

Volume goes down and Pressure goes down

84.

What state of matter occurs when a liquid gains enough energy to break the bonds holding it together and move freely.

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

85.

When particles form a regular repeating pattern we call this

a)

Amorphous

b)

Crystaline

c)

Sublimation

d)

Freezing

86.
As particles are exposed to warmer temperatures they __________
a)
speed up
b)
slow down
c)
stay the same
d)
vibrate
87.
As particles are exposed to colder temperatures they _____
a)
speed up
b)
slow down
c)
stay the same
d)
become ions
88.
What is the change of state from a solid straight to a gas called?
a)
melting
b)
evaporating
c)
freezing
d)
sublimation
89.
Ice Melting is an example of.......
a)
A liquid turning into a gas
b)
A solid turning into a liquid
c)
Gas turning into a liquid.
d)
A ssolid turning into a liquid
90.
An inflated balloon is placed in a refrigerator. Which statement describes the movement of the gas particles in the balloon?
a)
The particles move more slowly and become closer together.
b)
The particles move more slowly and become further apart.
c)
The particles move faster and become closer together.
d)
The particles move faster and become further apart. 
91.
Condensation is . . . .
a)
gas to liquid
b)
liquid to gas
c)
gas to solid
d)
solid to liquid
92.
Freezing (or solidification) is . . . .
a)
liquid to solid
b)
solid to liquid
c)
solid to gas
d)
solid to plasma
93.
What change of state does this pot show?
a)
Boiling
b)
Condensation
c)
Freezing
d)
Melting
94.

When ice melts...

a)

The mass of the water decreases during melting.

b)

The mass of the water stays the same before, during and after melting.

c)

The mass of the water is always changing.

d)

The mass of the water increases during melting.

95.
The graph below shows part of the cooling curve of a substance. Which row correctly identifies P, Q and R?
a)
P: Gas, Q: Gas and Liquid, R: Liquid
b)
P: Liquid, Q: Gas and Liquid, R: Gas
c)
P: Gas, Q: Liquid, R: Solid
d)
P: Solid, Q: Liquid, R: Gas
96.
A solid compound X was heated steadily for 20 minutes. The graph below shows the change in temperature of X with time. At what temperature did X melt?  
a)
20°C
b)
40°C
c)
90°C
d)
100°C
97.
A solid compound X was heated steadily for 20 minutes. The graph below shows the change in temperature of X with time. What is the boiling point of X?
a)
20°C
b)
40°C
c)
90°C
d)
100°C
98.
What is/are the physical state(s) of X at 100°C?
a)
Solid
b)
Solid and liquid
c)
Gas
d)
Liquid and gas
99.
Which of the following states of matter has the LOWEST level of energy?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
100.
What happens to the average kinetic energy of matter when it is heated?
a)
It increases
b)
It decreases 
c)
It doesn't change
d)
It cannot be determined
101.
At what temperature does matter change phases from a solid to a liquid?
a)
Melting Point
b)
Boiling Point
c)
100 degrees Celsius
d)
Condensation Point
102.

Particles always ________________ each other, this gets stronger as the particles get ___________________.

a)

attract, farther apart

b)

attract, closer together

c)

repel, farther apart

d)

repel, closer together

103.
My glass of ice water is sitting in the sun and has droplets of water on the outside of the glass. What is happening?
a)
condensation
b)
evaporation
c)
melting
d)
freezing

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