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Cambridge Science Stage 7 Unit 5

Total questions: 99

Worksheet time: 33mins

Name
Class
Date
1.

If something is magnetic, it will be _ to a magnet.

a)

repelled

b)

attracted

c)

indifferent

d)

dance

2.

Which of these is a key property needed for a bathroom window?

a)

opaque

b)

transparent

c)

translucent

d)

square

3.

Electrical conductors allow electrons to flow _ though the circuit.

a)

clockwise

b)

anticlockwise

c)

easily

d)

with difficulty

4.

What does this measure?

a)

temperature

b)

time

c)

distance

d)

conductivity

5.

What is the boiling point of pure water?

a)

100℃

b)

90℃

c)

110℃

d)

80℃

6.

The casing around copper wires is made from which type of materials?

a)

insulators

b)

conductors

c)

thick

d)

thin

7.

Saucepan handles should be made from an insulating material.

a)

true

b)

false

8.

How could I separate water and salt?

a)

sieve

b)

evaporate

c)

condense

d)

filter

9.

Which is the best method for separating a mixture containing pasta and sugar?

a)

condensation

b)

filtration

c)

sieving

d)

evaporation

10.
Chocolate breaks very easily. It is....
a)
permeable
b)
soft
c)
brittle
d)
transparent
e)
None
11.
I can bend this ruler a lot, and it won't break. It is...
a)
brittle
b)
rigid
c)
flexible
d)
soft
e)
None
12.
The window lets all light through. I can see everything on the other side. It is...
a)
transparent
b)
translucent
c)
opaque
d)
shiny
e)
None
13.
Light cannot pass through this bottle, so I cannot see the water inside at all. The bottle is...
a)
transparent
b)
translucent
c)
opaque
d)
shiny
e)
None
14.
This coin is old, and now it isn't shiny at all. It has become...
a)
reflective
b)
light
c)
permeable
d)
dull
e)
None
15.

Able to be drawn into wire is

a)

malleable

b)

insulator

c)

lustre

d)

ductile

16.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
17.
Which of the following is NOT a characteristic of most metals?
a)
Brittle
b)
Good conductor
c)
Ductile
d)
Malleable
18.
The amount of space something takes up.
a)
matter
b)
mass
c)
volume
d)
element
19.
When a gas turns into a liquid, it is called ___________________.
a)
Condensation
b)
Evaporation
c)
Melting
d)
Freezing
20.
The 3 State of Matter are?
a)
Idaho, Texas, and Florida
b)
Matter, Mass, and Weight
c)
Solids, Liquids, and Gas
d)
Steel, Copper, and Brass
21.

I am a state of matter: my molecules are very close together and hardly move. I am ____________.

a)

Solid

b)

Liquid

c)

Gas

d)

Oblek

22.

Matter is anything that has mass and occupies space.

a)

True

b)

False

23.

Identify the property of materials described in each sentence.


The physical property of metals defines their ability to be hammered, pressed, or rolled into thin sheets without breaking.

a)

malleability

b)

ductility

c)

elasticity

d)

hardness

24.
The ability of a material to deform, usually by stretching along its length
a)
plasticity
b)
ductility
c)
malleability
d)
elasticity
25.
Flexible means...
a)
bends easily 
b)
breaks if you bend it 
c)
scratches easily
d)
ridged like
26.
Transparent means
a)
cannot see through it
b)
light passes through it
c)
light does not pass through
d)
only some light passes through
27.

A material you can not see through is called ...

a)

Transparent

b)

Opaque

c)

Oblong

d)

Malleable

28.

Shiny and conducts electricity

a)

Glass

b)

Plastic

c)

Rubber

d)

Metal

29.

A solid that does not dissolve

a)

insoluble

b)

soluble

c)

immiscible

30.

A solid that dissolves

a)

soluble

b)

insoluble

c)

immiscible

31.

Mass is -

a)

the amount of matter in an object

b)

the density of a material

c)

the amount of force a material has

d)

the concentration of matter in an object.

32.

Weight is -

a)

the force of gravity on an object

b)

the amount of matter in an object

c)

never changes

d)

is how much a material can move

33.
matter
a)
Anything that has weight and takes up space
b)
anything that has a smell and you can feel it
c)
only a few things have matter
d)
the longest distance running
34.

The ability of a material to allow

electricity to pass through it

a)

Electrical conductivity

b)

Boiling point

c)

Ductile

d)

Thermal Conductivity

35.

The ability of a material to allow

heat to move through it

a)

Tensile strength

b)

Electrical conductivity

c)

Fragile

d)

Thermal conductivity

36.

Does not change shape easily.

a)

Opaque

b)

Rigid

c)

Malleable

d)

Flexible

37.

The temperature at which a material

changes from a solid to a liquid.

a)

Melting point

b)

Thermal conductivity

c)

Boiling point

d)

Freezing point

38.

The temperature at which a material

changes from a liquid to a gas.

a)

Opaque

b)

Thermal conductivity

c)

Boiling point

d)

Melting point

39.

The diagram shows a hammer. The part marked X should be made of ______________. State a reason for your answer.

a)

Steel. It is strong and can withstand heavy knocks.

b)

Glass. It is waterproof.

c)

Ceramic. It is a poor conductor of heat.

d)

Aluminium. It is a good conductor of heat.

40.

Which of the following is an element?

a)

O2

b)

Al2CO5

c)

C6H12O6

d)

SiO2

41.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
42.

How many oxygen atoms are in the compound C6H1206?

a)

0

b)

6

c)

12

d)

18

43.

How many carbon atom/s are present in the compound CaCO3?

a)

1

b)

2

c)

3

d)

4

44.
a)

Element

b)

Compound

c)

Mixture

45.
a)

Element

b)

Compound

c)

Mixture

46.
a)

Element

b)

Compound

c)

Mixture

47.

a)

Element

b)

Compound

c)

Mixture

48.
a)

Element

b)

Compound

c)

Mixture

49.
DIFFERENT kinds of atoms chemically combined to form a substance are
a)
Mixture
b)
Element
c)
Compound
d)
Substance
50.
Which of the following is an element?
a)
Sugar
b)
Salt
c)
Water
d)
Oxygen
51.
The building block of matter is
a)
Mixture
b)
Atom
c)
Element
d)
Substance
52.
This is made up of one or more of kind of the SAME kind of atom
a)
Element
b)
Mixture
c)
Compound
d)
Matter
53.
Water is an element
a)
true
b)
false
54.

Which changes MUST happen for elements to become a compound?

a)

elements are heated

b)

a gas becomes a liquid

c)

elements dissolve in water

d)

chemical bonds form between atoms.

55.

Oxygen and iron combine chemically to form rust. Rust is classified as which of the following?

a)

an atom.

b)

an element.

c)

a compound.

d)

a mixture.

56.

When the elements copper (Cu) and oxygen (O) chemically combine, they form...

a)

an ion

b)

a gas

c)

a compound

d)

a mixture

57.
A pure substance that cannot be separated into simpler substances by chemical or physical means.  
a)
Element
b)
Compound
c)
Mixture
d)
Chemical
58.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
d)
water 
59.
A compound is made of ________ atoms. 
a)
big 
b)
similar 
c)
different 
60.
Carbon Dioxide is a ______ 
a)
compound 
b)
element 
c)
mixtures 
d)
Battle of Bunker Hill 
61.
Two or more physically combined substances form —
a)
a compoud
b)
an acid
c)
an element
d)
a mixture
62.
The air is a _________. 
a)
element 
b)
mixture 
c)
compound 
d)
energy 
63.
Blue Color: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
64.
Flammability (burns): Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
65.
Reacts with Acid: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
66.
Brittleness: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
67.
Melting Point: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
68.
Boiling Point: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
69.
Reacts with Air: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
70.

Water (H2O)

a)

Compound

b)

Mixture

c)

Element

71.

Salt Water

a)

Compound

b)

Mixture

c)

Element

72.

Toppings on a Pizza

a)

Compound

b)

Mixture

c)

Element

73.

Milk and Cereal

a)

Compound

b)

Mixture

c)

Element

74.
What is salad?
a)
element
b)
compound
c)
mixture
75.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
76.

What colour does litmus paper turn when added to an alkali?

a)

Blue

b)

Red

c)

Green

d)

Colourless

77.

Which pH levels indicated a strong acid?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

78.

Which pH level indicates a strong alkali?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

79.

What does this hazard symbol mean?

a)

toxic

b)

flammable

c)

corrosive

d)

explosive

80.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
81.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
82.

What colour is pH neutral?

a)

Yellow

b)

Orange

c)

Red

d)

Green

83.

Acid in our stomach:

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Acetic acid

d)

Carbonic acid

84.

The color of litmus in neutral solution:

a)

Red

b)

Blue

c)

Purple

d)

Green

85.

Reaction between acid and alkali producing salt and water:

a)

Combustion

b)

Neutralization

c)

Precipitation

d)

Decomposition

86.

What colour does litmus paper change to in an acid?

(a)  

87.

An alkali and an acid together make a (a)   solution.

88.

Reorder the following items from the smallest pH to the largest.

a)

soda

b)

water

c)

toothpaste

1)
2)
3)
89.

What are the properties of alkalis?

a)

Soapy touch

b)

Sour taste

c)

Bitter taste

d)

A pH of 6 or below

e)

A pH of 8 or above

90.

What are the properties of acids?

a)

Sweet taste

b)

Sour taste

c)

A pH of 6 or below

d)

Spicy taste

91.
a)

Flammable

b)

Toxic

c)

Corrosive

d)

Harmful

92.

How would you describe a solution of pH 8?

a)

Neutral

b)

Weak alkali

c)

Weak acid

d)

Strong acid

93.

What does this warning symbol mean?

a)

Toxic

b)

Corrosive

c)

Flammable

d)

Irritant

94.

What does this warning symbol mean?

a)

Toxic

b)

Corrosive

c)

Flammable

d)

Irritant

95.

What does this warning symbol mean?

a)

Toxic

b)

Corrosive

c)

Flammable

d)

Irritant

96.
What colour is universal indicator in a strong alkali?
a)
Green
b)
Orange
c)
Purple
d)
Red
97.
What colour is universal indicator in strong acid?
a)
Green
b)
Orange
c)
Purple
d)
Red
98.

A purple colour when using universal indicator indicates the solution is _______________.

a)

neutral

b)

acidic

c)

alkali

d)

blackcurrant juice

99.

An alkali is able to “cancel” out an acid. This process is also known as?

a)

balancing

b)

extraction

c)

overcome

d)

neutralisation

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