TEST CODE 09630010 FORM TP 2020389

TEST CODE 09630010 FORM TP 2020389

GUYANA MINISTRY OF EDUCATION

NATIONAL GRADE SIX ASSESSMENT

SCIENCE

Paper 01

( APRIL 8, 2020 (p.m.) )

1 hour and 10 minutes

READ THE FOLLOWING INSTRUCTIONS CAREFULLY.

1. This test has 40 questions. You have 1 hour and 10 minutes to answer them.

2. Each question has four suggested answers: (A), (B), (C) and (D). Read each question carefully, then choose the correct answer.

3. On your answer sheet, find the number that matches the question you intend to answer.

4 . Shade the circle with the letter, (A), (B), (C) or (D), that matches your answer for each question.

Sample Question

Carbon dioxide is a

(A) (B) (C) (D)

mixture. liquid. solid. gas.

The correct answer is "gas", so (D) has been shaded.

Sample Answer

®®®e

5. If you want to change your answer, erase it completely before you fill in your new choice.

6. When the supervisor tells you to begin, turn the page and work as quickly and as carefully as you can.

7. If you try a question and find that you cannot answer it, leave it and go on to the next one. You may return to that question later.

8. You must not use calculators for this examination. Rough work may be done in this booklet.

DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO.

0963001 0/NGSA 2020

Copyright© 2019 All rights reserved.

-2-

1. The fusing of the egg and sperm is called

(A) ejaculation.

(B) fertilization.

(C) intercourse.

(D) implantation.

2. Which of the following correctly shows the route taken by a sperm during sexual

reproduction?

(A) Penis ~ ovary ~testes

(B) Penis~ testes~ vagina

(C) Testes ~ penis ~ vagina

(D) Testes~ ovules~ penis

GO ON TO THE NEXT PAGE 0963001 0/NGSA 2020

-3-

Question 3 refers to the following classification chart which shows the different

parts of the human body under the body system in which they function .

Body systems

Heart Veins

Arteries

Skull Spine

Ribcage

,..

Mouth Stomach

Small intestine

3. The body systems labelled P, Q, R and 5 are

p Q R

(A) circulatory digestive skeletal

(B) respiratory skeletal digestive

(C) circulatory skeletal digestive

(D) respiratory digestive skeletal

4. An example of an invertebrate is a

(A) fish.

(B) bird.

(C) whale.

(D) butterfly.

Lungs Nostrils

Windpipe

5

respiratory

circulatory

respiratory

circulatory


-4-

5. Animals that have skin with fur or hair, feed milk to their young and maintain a

constant body temperature are called

(A) fish.

(B) birds.

(C) reptiles .

(D) mammals.

Question 6 refers to the following diagram which shows an insect, Y.

Insect Y

6. Insect Y may be a threat to mankind because it

(A) spreads diseases.

(B) destroys homes.

(C) damages crops.

(D) spreads litter.

7. Which part of the plant allows excess water to be given off?

(A) Fruits

(B) Roots

(C) Stems

(D) Leaves


-5-

8. The green pigment in leaves that helps them to carry out photosynthesis is

called

(A) palisade.

(B) mesophyll.

(C) chlorophyll.

(D) chloroplast.

Question 9 refers to the following diagrams of two animals.

9. What special adaptation feature do both animals have in common?

(A) Type of feet

(B) Body covering

(C) Shape of mouth

(D) Shape of tongue


-6-

Question 10 refers to the following diagram of the water cycle.

10. The process taking place at A is

(A) sublimation.

(B) evaporation.

(C) precipitation.

(D) condensation.

11. Which of the following techniques is used to separate insoluble particles from a

liquid?

(A) Filtration

(B) Distillation

(C) Evaporation

(D) Chromatography


t

, -7-

• 12. From the earth, the moon appears to be big and bright. This phase of the moon

is called

(A) full moon.

(B) new moon.

(C) first quarter.

(D) last quarter.

13. One form of energy given off by a burning candle is

(A) chemical.

(B) potential.

(C) sound.

(D) light.

14. Two examples of wedges are

(A) a knife and an axe.

(B) a door knob and a knife.

(C) a pair of pliers and an axe.

(D) a door knob and a pair of pliers.

15. Which of the following organs of the human body is correctly matched to its

function?

Organ Function

(A) Heart Pumps blood to all parts of the body

(B) Lung Transports oxygen around the body

(C) Stomach Removes water from undigested food

(D) Large intestine Absorbs nutrients from food


-ts-

16. Which two body systems work together to transport oxygen to the cells in the

human body?

(A) Digestive and skeletal

(B) Circulatory and skeletal

(C) Respiratory and digestive

(D) Circulatory and respiratory

Question 17 refers to the following diagram which shows one of the systems in

the human body.

l-+--+-11

--v--r--H--Ill

17. Which of the parts labelled I, II, Ill, IV, is not involved in the digestion of food?

(A)

(B) II

(C) Ill

(D) IV


-9-

Question 18 refers to the following diagrams which show four organisms.

Octopus Butterfly Housefly Cockroach

18. Which of the organisms above undergoes three stages in its life cycle?

(A) Cockroach

(B) Octopus

(C) Butterfly

(D) Housefly

19. The part of a flower that has a similar function to the testes in a human male is

the

(A) anther.

(B) stigma.

(C) ovule.

(D) style.


-1U-

Question 20 refers to the following steps which describe how sexual reproduction

takes place in plants.

V - Male cell fuses with female cell.

W - Pollen grains are transferred to stigma.

X - Anther releases pollen grain.

Y - Pollen tube grows towards ovule.

Z - Seed develops.

20. Which of the following options shows the correct sequence of steps in the

process of sexual reproduction in a flowering plant?

(A) x~z~v~w~v

(B) x~w~v~v~z

(C) w~x~z~v~v

(D) w~v~x~v~z

Question 21 refers to the following statements which describe the different

stages of a seed germinating into a seedling.

I. The shoot grows upwards.

II. The young plant uses sunlight to make food.

Ill. The root grows downwards.

IV. The seedling develops its first leaves.

21. Which of the following options shows the stages of germination in the correct

order?

(A) I, Ill, II, IV

(B) II, IV, Ill, I

(C) Ill, I, IV, II

(D) Ill, IV, I, II


-11-

Question 22 refers to the following table which shows some animals that are

grouped according to their habitats.

Habitat Animals

p Dolphin, jellyfish, starfish

R Earthworm, wood louse, centipede

s Grasshopper, butterfly, spider

T Tadpole, mosquito larva, dragonfly nymph

22. In which of these habitats would a praying mantis most likely be placed?

(A) p

(B) R

(C) S

(D) T

23. What would be the source of energy for the producer in the following food

chain?

grass ~ deer~ lion

(A) Sun

(B) Water

(C) Oxygen

(D) Nutrients


-1L-

Question 24 refers to the following diagram which shows the different stages in

the water cycle.

0 ~Sea~

0 Rive~ /Cioud0 Rain

G 24. Which process(es) take(s) place from Stage 5 to Stage P?

(A) Melting only

(B) Condensation only

(C) Melting and evaporation

(D) Evaporation and condensation


-13-

Question 25 refers to the following table which shows some properties of three

substances, X, Y and Z.

Has Mass Has a Definite Has a Definite

Volume Shape

X Yes No No

y Yes Yes No

z Yes Yes Yes

25. Which of the following represents the correct state of matter for X, Y and Z?

X y z

(A) Solid Liquid Gas

(B) Liquid Solid Gas

(C) Gas Liquid Solid

(D) Liquid Gas Solid

GO ON TO.THE NEXT PAGE 0963001 0/NGSA 2020

-14-

Question 26 refers to the following diagram which shows four possible pathways

(1, II, Ill and IV) for the transfer of energy from a plant to a human.

Plant I .. · I \ " ..

I \ ' .. · ,_.,.,.,•"' I ' \ ' /lns~··i

I E ~ I I I . . I

8 I I I I I . I

~ .

/HuLl I

I Hu!an I I Hu~an I II Ill IV

26. Which pathway above transfers the most energy from a plant to a human?

(A)

(B) II

(C) Ill

(D) IV

27. Which of the following is the best reason for using metals to make cooking

pots?

(A) Metals can conduct heat.

(B) Metals are strong objects.

(C) Some metals are lightweight.

(D) Metals are shiny and attractive.


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28. Which of the following practices would best conserve electricity?

I. Switching off electrical appliances when not in use

II. Drying clothes in the dryer on a hot and sunny day

Ill. Using energy-saving appliances like compact fluorescent bulbs

(A) I and II only

(B) I and Ill only

(C) II and Ill only

(D) I, II and Ill

Question 29 refers to the following diagram which shows two identical marbles,

X andY, rolling towards each other at the same speed.

29. Which of the following statements correctly describes what will happen when

the two marbles collide?

(A) Marble X will move backwards, while Marble Y will stop moving.

(B) Marbles X and Y wi ll move in opposite directions at different speeds. (C) Marbles X andY will move in opposite directions at the same speed.

(D) Marble X will stop moving upon hitting Marble Y, while Marble Y will

move backwards.


-16-

Question 30 refers to the following diagrams which show three objects, a

hammer, a rowboat and a seesaw.

Hammer Rowboat Seesaw

30. The simple machine in use by the hammer, rowboat and seesaw is

(A) a lever.

(B) a gear.

(C) an inclined plane.

(D) a wheel and axle.


-17-

Question 31 refers to the following diagram which shows the human digestive

system.

r+--+-Q

-v-v-:4+---R

31. Which of the parts labelled L, P, Q, Rand S works closely with the circulatory

system to provide nutrients to the various cells in the human body?

(A) L

(B) Q

(C) R

(D) S


-18-

Question 32 refers to the following diagrams which show the human male and

female reproductive systems.

N

32. Which of the labelled parts of the male and female reproductive systems perform

similar functions?

(A) L and P; Q and M

(B) Land Q; M and R

(C) L and P; N and R

(D) ·M and Q; Nand R

33. Which of the following statements about sexual reproduction in both plants and

animals is incorrect?

(A) The female sex cells are produced in the ovary.

(B) The process of pollination takes place before fertilization.

(C) The male sex cells are created in the anther and the testes.

(D) The male sex cells produced in the anthers are called spores.


-19-

Question 34 refers to the following illustration of an experiment. The set-up was

left in the sun for a few hours.

::o' I~~ / ......

I I \

Sun Steel container

11-----#--Plant

_,j-------11-- Beaker of water

34. Which of the following processes will most likely occur inside the container?

(A) Condensation and freezing

(B) Evaporation and respiration

(C) Photosynthesis and respiration

(D) Evaporation and photosynthesis


-LU-

Question 35 refers to the following diagram which shows a food web.

X

Caterpillar

Rabbit

35. Which set of organisms for X, Y and Z will correctly complete the food web?

X y z

(A) Earthworm Spider Sparrow

(B) Owl Eagle Ladybug

(C) Grasshopper Bird Hawk

(D) Squirrel Earthworm Lizard


-21-

Question 36 refers to the following diagram which shows the water cycle. In the

diagram, P, Q, Rand S indicate the changes in the state of water.

/I Clouds I~ I Water vapour I I Rain

~I Sea I /o

36. Based on the diagram above, which of the following statements about the

changes in state of water that occur in the water cycle is correct?

(A) At Point P, water changes from a liquid to a solid state.

(B) At Point R, water changes from a solid to a liquid state.

(C) At PointS, water changes from a gaseous to a liquid state.

(D) At Point Q, water changes from a liquid to a gaseous state.

37. John wishes to extract the salt from a glass of salt solution. Which of the

following methods of separation should he use?

(A) Sedimentation

(B) Evaporation

(C) Distillation

(D) Filtration

38. Predicting the weather is more accurate today because of the use of

(A) rockets.

(B) telescopes.

(C) natural satellites.

(D) artificial satellites.


-22-

Question 39 refers to the following diagram of a simple circuit.

Switch

39. Which of the following correctly shows the energy conversion that occurs in

lighting the bulb, as illustrated in the diagram above?

(A) Light~ electrical ~ chemical

(B) Chemical~ electrical~ light

(C) Electrical~ light ~ chemical

(D) Chemical~ light~ electrical


-23-

Question 40 refers to the following diagrams which show the different shapes

formed when the same piece of paper is folded.

0 I I ~ w X y

40. Which of the shapes would have the greatest resistance to gravity?

(A) W

(B) X

(C) y

(D) Z

END OF TEST

IF YOU FINISH BEFORE TIME IS UP, CHECK YOUR WORK ON THIS TEST.

0963001 0/NGSA 2020

Prepared by

CARIBBEAN EXAMINATIONS COUNCIL

Documents

TEST CODE 09630010 FORM TP 2020389