TIIE C.OVERNMENT OF TIIE REPT]BLIC OF TRINIDAD AND TOBAC.O
MINISTRY OF EDUCATION
NATIONAL CER'|IFICATE OF SECONDARY
EDUCATION 2OI4
(Level 1)
INTEGRATED SCIENCE
TIME:
Name of Student
Name of School
ID Number of School
Student's Number
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INSTRUCTIONS
Read the following carefully:
1.
This paper consists of two (2) sections. There are forty (40) multiplechoice questions in Section I and six (6) structured questions in Section lI.
2. Fill in the following
information on the Multiple-Choice Answer Sheet
using a 2HB pencil only (if it has not already been completed):
-
Name of School
ID Number of School
Name of Student
Student's Number
Date of Birth
3.
Attempt all questions in Section I. Record your answers on the MultipleChoice Answer Sheets provided.
4.
Answer all questions in Section II in the spaces provided in this booklet.
5.
You should spend approximately fifty (50) minutes on Section I and forty
(40) minutes on Section [I.
6.
On the Multiple-Choice Answer Sheet DO NOT
o
o
o
.
.
7.
write anything on the top and sides.
staple anything.
punch holes.
tear any part.
make stray marks.
Complete the following on the cover of this test booklet:
-
Name of Student
Name of School
ID Number of School
Student's Number
8. If you are finished before time is called,
NCSE 2O14
-
Integrated Science
go back and check your work.
SECTION I
MULTIPLE CHOICE
There are forty (40) questions in this section with four (4) answer options: A, B, C, and D. You
are required to answer ALL questions. Select only ONE option.
l.
The heat energy on the surface of
earth comes mainly from _.
the
5.
A. a number or value only
B. a unit name only
C. both a number and a unit
D. either a number or a unit
A. fire
B. the sun
C. volcanoes
D. the core of the earth
2.
When a compound in a liquid state
vaporizes and becomes a gas, which
the following characteristics of the
compound remains the same?
A.
B.
6.
of
distance between the molecules
chemical composition of the
substance
substance
Which of the following is a renewable
source ofenergy?
A. coal
B. natural gas
C. petroleum
D. solar power
4.
Patrick added water plants to his
goldfish bowl and placed the bowl in
direct sunlight. A few hours later, he
noticed the underwater plants had tiny
air bubbles on the surface ofthe leaves.
What caused the air bubbles to form on
the leaves?
A.
B.
C.
D.
C. kinetic energy of the molecules
D. specific heat capacity of the
3.
In science, measurements are always
repofted using
7
.
the process of evaporation
the process of photosynthesis
goldfish breathing on the plants
an increase in water temperature
The volume of liquid represented in the
diagram below is _.
uo
60.:::r
One disadvantage of using solar power
in Trinidad is that
A. a lot of pollution is produced
B. it is expensive to set up
C. it is not renelvable
D. there is too little sunshine
NCSE 2014
-
lntegrated Science
it
il
A. 82 cm3
B. 83 cm3
C. 84 cm3
D. 92 cm3
8.
Shoba wants to collect 20 millilitres
(mL) of water from a forest stream.
Which would be the best apparatus fbr
measuring exactly 20 mL of water?
12.
A. heating
B. melting
C. boiling
D. sublimation
A. 250 mL beaker
B. 30 mL test tube
C. 2 rnL dropper
D. 50 rnl- graduated cylinder
r3.
9.
A. glucose
B. water
C. chlorophyll
D. soil
contains
C.
how much space an object occupies
the amount of rlatter in a fixed
D.
the shape of an object
B.
space
14.
Wlrich of thc lbllowing staten'rents is
TRUE']
A.
The freezing point of r,r'atcr is
B.
The rnelting point of ice is 0" C.
Water evaporates quickll'rvlien it is
very' cold.
Steam and water vapour are names
given to fiozen water.
10000
C'.
D.
11.
The green substance in a leaf that traps
sunlight to produce food is known as
Mass is a measure of
A. how much matter an obiect
I0.
The change in state directly frorn solid
to a gas is called
c.
A. reduce cornpetitron for resources in
short suppll'
B. rnake the plant less appealing to
herbivores
C. limit cross-pollination'*'ith other
plants
D. slow the spread ofdiseases and
insect pests
The power suppll,to I'our home is
measurcd in
A.
B.
C.
l).
A plant releases cheniical compounds
into the soil arounc'l it. These
compounds inhibit the gennination ar,d
grow'th of other plants in the area
immediately surrounding the plant.
This strategv nrost likell' scrves to
amperes
coulombs
kilowatts
volts
15.
The
joint that allows the most flexibility
in the human body is
joint
a pivot joint
C. a ball and socketjoint
D. a hinge joint
A.
B.
NCSE 201,1
-
lntegrated Scicnce
a fixed
16.
An exarnple of when a chemical change
occurs is
20.
Figure I shows a barcode scanner in
use. This device uses a laser.
A. magnet on a fridge
B. dew disappearing from grass
C. making mashed potatoes
D. moulding plasticine
17.
I@
%
A mixture of oil and water can be
separated using
Figure
A. a separating firnnel
B. filtration
C. heating
D. distillation
18.
D.
19.
Which of the following diagrams
oflight produced by
this laser?
represents a beam
Which of the following is a nonluminous source of light?
A. a fire-fly
B. a light-emitting-diode
C. the moon
A.
(LED)
the sun
The following diagrams show the effect
of light falling on cups made out of
different materials.
B.
C.
III
II
Which of the following correctly
identifies the type of materials?
transparent
translucent
opaque
A
I
B
ilI
II
I
C
III
il
III
II
D
I
III
NCSE 2014
-
Integrated Science
I
I
II
D.
---------
21. Figure 2a shows the apparatus used to generate the shadow shown in Figure 2b.
torch
cardboard
opaque
with hole
object
screen
umbra
n
L-/
I
screen
Figure 2a
Figure 2b
When the cardboard is removed, which of the statements about the new shadow is true?
A. The shadow stays the same.
B. The umbra gets bigger.
C. The shadow is now called a penumbra.
D. The shadow has two regions called an umbra and apenumbra.
22.
24.
The colour that a green shirt will appear
when placed in blue light is
economy by
A. green
B. blue
C. black
D. cyan
23.
Diseases impact on a country,s
I
II
-
--.
reducing productive time spent AI
work
-
draining the country of its
creativity and wealth
III - raising health
The energy flow through a food chain
care costs
Which of the above is/are true?
A. decreases
B. increases
C. remains constant
D. does not exist
NCSE 20 l4
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Integrated Science
A. I only
B. I, II and III
C. II and III only
D. III only
4
25.
a
Jack is standing I metre away facing
plane mirror. The distance he is from his
image in the mirror is
29.
_.
Which of the following best describes
the image formed by a plane mirror
and the image formed by a camera
lens?
A.
B.
C.
D.
26.
0 metre
I metre
2 metres
3 metres
Plane mirror
Which of the following BEST describes
the digestion of beans?
A.
B.
C.
D.
A
Chewing ---+ Stomach -> Proteins -'
Amino Acids
Chewing ---+ Stomach -> Minerals ---+
Calcium & Iron
Chewing ---+ Pancreas ---+ Fats ----r
Fatty Acids ---+ Glycerol
Chewing ---+ Pancreas ---+
Carbohydrates -- Simple sugars
B
C
27.
A balanced diet and regular exercise
virtual, inverted
virtual, inverted
and enlarged
and enlarged
real, inverted
and reduced
real, upright and
the same size as
object
D
Convex lens in a
camera
virtual, upright
and the same
size as object
real, upright and
the same size as
object
virtual, upright and
the same size as
object
real, inverted and
reduced
are
used to
A.
B.
C.
D.
28.
build muscles
fight diseases
manage body weight
strengthen bones and
30.
followins diseases?
-
teeth
Which part of the digestive
Obesity is an example of which of the
A. deficiencv
B. hereditary
C. infectious
D. lifestyle
system
contains acid?
A' mouth
B. stomach
C. small intestine
D. large intestine
NCSE 2014
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Integrated Science
31.
The accumulation of metabolic wastes
can be treated using
A. a pacemaker
B. birth control
C. dialysis
D. an injection
JZ.
A.
Examine the diagram below, then
answer the question which follows.
It possesses carbon-containing
molecules.
It is able to reproduce.
Its temperature is higher than that of
the surrounding air or water.
It has a highly ordered structure.
B.
C.
D.
aa
JJ.
35.
Which of the following characteristics of
an unknown object would provide the
best evidence that the object is a living
organism?
TI
IU
IV
Which of the following correctly matches
excretory products to their excretory
In which part of the female
reproductive system does the foetus
develop?
organs?
A. I
B. II
Excretory
Organ
Excretory
Product
A
skin
heat
B
lungs
oxygen
C
heart
blood
Which of the following correctly
describes the path an egg takes during
owlation?
D
kidney
unne
A.
C. ilI
D. IV
36.
B.
34.
Micro-organisms which ferment milk to
produce yogurt are called
A.
B.
C.
D.
C.
D.
viruses
fungi
mould
bacteria
31.
Vagina --- Cervix -' Uterus
->
Fallopian Tube --+ Ovary
Ovary --- Fallopian Tube --Uterus ---+ Cervix ---+ Vagina
Vagina ---+ Uterus -r Fallopian
Tube ---+ Ovary --- Cervix
Ovary ---+ Uterus ---+ Cervix --+
Vagina -+ Fallopian Tube
People can prevent global warming by
A. planting trees
B. conserving water daily
C. increasing combustion of fuels
D. decreasing the use of fertilizers
NCSE 2014
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Integrated Science
6
38.
Sunil wants to make a protective case to
store his watch which is sensitive to
magnetic fields. The BEST material to
use to make the case is
A.
B.
iron
steel
C. nickel
D. aluminum
39. An inflated balloon will shrink if placed
in a refrigerator because the lower
temperature causes the gas particles to
move
A.
B.
C.
D.
more slowly and become closer
together
faster and become closer together
more slowly and become further
apart
faster and become further apart
NCSE 2014
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lntegrated Science
40.
Which gas in the atmosphere protects
us from harmful ultraviolet radiations?
A. ozone
B. oxygen
C. nitrogen
D. carbon dioxide
SECTION
II
There are SIX (6) questions in this section.
Answer ALL questions in the spaces provided.
l.
(a)
Complete the passage using the words below.
intercostal
downwards
thorax
decreases
increase
upwards
diaphragm
When you breath in, the rib muscles pull the chest
outwards. The
muscles move
flattens. The space inside the chest
the chest
and
and
The pressure inside
causing air to be sucked into the lungs.
(5 marks)
(b)
Identify the process that is represented by the word equation berow.
food + oxygen
+
carbon
dioxide +
water
-#energy
(l mark)
NCSE 20 l4 Integrated Science
(c)
The table below shows the breathing rate of two persons, Anthony and Ria, before and after
exercising.
Activity
Breathing rate of
Anthony
Breathing rate of
Ria
Before exercising
22
L7
After exercising
40
39
(i)
Why did the breathing rate of both Anthony and Ria increase after exercising?
(1 mark)
(ii)
Besides an increase in the breathing rate, what other body changes would occur after
exercising?
(3 marks)
Total l0 marks
2. (a)
List two different methods that can be used to separate mixtures.
(i)
(ii)
(2 marks)
NCSE 2014
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Integrated Science
(b)
Carl, a handyman, had a tool kit containing objects made of the following materials:
aluminum
iron
wood
rubber
steel
His tool kit fell and the materials got mixed up. He used a magnet to help sort the
materials. Complete the table below using the materials listed above.
Materials picked up by the magnet
Materials not picked up by magnet
(5 marks)
(c)
On the diagram of the magnets shown below, draw and indicate the direction of the
magnetic fields that exist.
(i)
(ii)
N
N
N
S
S
S
N
S
(3 marks)
Total l0 marks
NCSE 2014
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Integrated Science
l0
3. (a) (i)
It is a well-established fact that an increase in carbon dioxide in the
atmosphere leads to global warming. Identify TWO (2) of man's activities
that cause an increase in carbon dioxide in the atmosphere.
(2 marks)
(ii)
State TWO (2) measures that can be adopted to reduce the amount of carbon
dioxide in the atmosphere.
(2 marks)
(b)
Some raw materials that are needed by plants to manufacture food are
COz
(i)
water
sunlight
The name of the process by which plants manufacture food is
(1 mark)
(ii)
Briefly explain the process by which the plants obtain any TWO (2) of the
materials above.
Material
NCSE 2014
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Integrated Science
ll
Material
Process
(4 marks)
(iii)
State one other material that must be present for plants to manufacture food.
(l mark)
Total l0 marks
4. (a)
List the three states of matter.
(3 marks)
(b)
Identify the TWO (2) states of matter that are present in a snow cone.
(i)
(ii )
(2 marks)
NCSE 2014
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Integrated Science
t2
(c)
What is the name of the process that causes the change from state I to state II below?
tary )
,ffi*,d
u-rok;
k#
State
I
State
II
(1 mark)
(d)
Draw in the boxes below the arrangement of the particles in each state.
Arrangement of particles in state I
Arrangement of particles in state II
(2 marks)
(e) (i)
Explain how the change in the arrangement of the particles occurs.
(l mark)
NCSE 2014
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Integrated Science
13
(ii)
What can be done to prevent the change from state I to state II?
(1 mark)
Total l0 marks
5. (a)
Khaleel is given a list of the materials below and asked to classify them as insulators and
conductors. Complete the table below by placing a tick ( { ) in the appropriate column to
indicate which are insulators and which are conductors.
Materials
Insulator
Conductor
plastic
copper wire
pencil
nail
(2 marks)
NCSE 2014
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Integrated Science
14
(b)
Describe in detail an experiment that would help Khaleel determine if a material is a
conductor or an insulator.
(4 marks)
(c)
Indicate in the diagrams below which circuits are in series and which are parallel. Write
your answer on the lines provided.
(4 marks)
NCSE 2014
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Integrated Science
15
(d)
Explain how three (3) batteries in a torchlight are arranged to ensure it gives a bright light.
(2 marks)
Total 10 marks
6.
(a)
The diagram below shows how food can be cooked using energy from the sun.
Explain the rnethod of heat transfer from the sun to the apparatus shown to enable the
cooking of the food.
(3 marks)
NCSE
2014
Integrated Science
l6
(b)
List three (3) situations, other than in cooking, where energy from the sun can be used by
man.
(3 marks)
(c)
The diagram below shows a thick, round-bottom iron pot used to cook food on an electric
stove.
(i)
State two ways that the pot can be redesigned in order for fbod to cook faster.
a.
b.
(2 marks)
NCSE 201.1 - Integrated Scieuce
t1
(ii)
Explain how each modification allows the food to cook faster.
(2 marks)
Total 10 marks
END OF TEST
NCSE
2014
Integrated Science
18