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Tuesday 21 August 2012

2012 Primary 3 Science Mid Year Examination 2

Section A

For each question from 1 to 30, four options are given. One of them is the correct answer. Make your choice (1, 2, 3 or 4)
1.
Study the table below carefully.

Living ThingsNon-Living Things
SeedsWind
WaterRock
MushroomMoving Car

Which one of the above has been grouped wrongly?
  1. Wind
  2. Water
  3. Seeds
  4. Moving car
2.
Which of the following statements show that living things respond to changes around them?

A: A zebra ran when it saw a lion nearby.
B: John moved his hand away from a hot kettle.
C: A bird flew away when it saw a boy coming closer to it.
D: A mimosa plant folded its leaves when a bird stepped on it.
  1. A and B only
  2. A and C only
  3. A, B and C only
  4. A, B, C and D
3.
Which of the following statements is/are correct?

A: All living things need water.
B: Only animals that swim need water.
C: Non-living things can move by themselves at night.
D: Plants are the only kind of living things that reproduce.
  1. A only
  2. A and C only
  3. A and D only
  4. C and D only
4.
The diagram below shows how some non-living things are classified.


Which one of the following things can be classified under Group B?
  1. Paper bag
  2. Glass bottle
  3. Marble table
  4. Metal spoon
5.

In what ways are the things above similar?

A: They can grow.
B: They can have young.
C: They can make food.
D: They are living things.
  1. A only
  2. A and C only
  3. A, B and D only
  4. A, C and D only
6.
Study the two pictures below carefully.


Which one of the following sentences describes what you are able to see from the pictures above?
  1. Both animals have spots on their body.
  2. Both animals need air, food and water.
  3. The frog eats insects while the snake eats mice.
  4. The frog moves by jumping and the snake moves by gliding.
7.
The classification diagram shows 2 groups of animals. Study it carefully and answer the question.

Which of the following correctly describes the animals in each group?


Group AGroup B
A Animals that live on landAnimals that live in water
BAnimal eatersPlant eaters
CAnimals that give birth to
their young
Animals that lay eggs
DSmall animalsBig animals
  1. A
  2. B
  3. C
  4. D
8.
Daniel was given a list of 6 animals to classify. He classified them in a table as shown below.

FishMammal
ClownfishSeal
SeahorsePlatypus
DolphinAnteater

Which animal has been grouped wrongly?
  1. Seal
  2. Dolphin
  3. Platypus
  4. Seahorse
9.
The following animals are grouped together according to a common characteristic.


Based on what you know about the above animals, how are they grouped?
  1. All have wing.
  2. All have feelers.
  3. All have six legs.
  4. All have feathers.
10.
Rayson caught two different organisms which can fly. One of them is an insect. Which of the following characteristics are important in identifying that the organism is an insect?

A: Two eyes
B: Two wings
C: Two antennae
D: Three body parts
  1. A and D only
  2. C and D only
  3. B, C and D only
  4. A, B, C and D
11.
Peter observed two animals and listed his observations below.

Animal XAnimal Y
Can flyCannot fly
Gives birth to young aliveLays egg
Body is covered with hairBody is covered with feathers

Which two animals are most likely to be Animal X and Y?


Animal XAnimal Y
(1)grasshoppersparrow
(2)goatant
(3)batostrich
(4)beepenguin
  1. 1
  2. 2
  3. 3
  4. 4
12.
Animal X has the following characteristics:
  • It lays eggs.
  • It breathes through gills.
  • It has an outer covering of scales.
Which one of the following can be animal X?
  1. snake
  2. dolphin
  3. guppy
  4. rainbow fish
13.
Which of the following characteristic or characteristics can we use to tell an animal apart from a plant?

A: An animal needs air but a plant does not.
B: An animal needs food but a plant does not.
C: An animal can respond but a plant cannot.
D: An animal cannot make its own food but a plant can.
  1. C only
  2. D only
  3. A and C only
  4. A, B and D only
14.
Which part of the plant below makes food for the plant?

  1. 1
  2. 2
  3. 3
  4. 4
15.
Jenny wanted to find out if plants respond to sunlight. Which of the following set-ups will be most suitable for her experiment?
16.
Which one of the following is not a flowering plant?
  1. rice
  2. pine
  3. hibiscus
  4. lantana
17.
Study the pictures below.


Which of the above are fruits?
  1. A and B only
  2. A and D only
  3. A, B and C only
  4. A, B, C and D
18.
Some plants, W, X, Y and Z, have common characteristics as shown in the table below.

A tick (√) in the box indicates the presence of a certain characteristic.

Plant
CharacteristicW X Y Z
found on land

reproduces by spores

bears flowers


Using the information above, Janet drew the following diagram to classify them.



What are the suitable sub-headings for Group A and Group B?


Group AGroup B
(1)fernsfungi
(2)funginon-flowering plants
(3)land plantswater plants
(4)non-flowering plantsflowering plants
  1. 1
  2. 2
  3. 3
  4. 4
19.
Which of the following statements about flowering plants is false?
  1. Flowering plants produce fruits.
  2. Some flowering plants have spore bags.
  3. All flowering plants can make their own food.
  4. Some flowering plants live on land while others live in water.
20.
The diagram below shows a plant growing in the garden.


Which of the following statements is/are correct?

A: The plant has roots.
B: This plant reproduces from spores.
C: This plant is a flowering plant.
  1. B only
  2. A and B only
  3. A and C only
  4. A, B and C
21.
Which of the following statements is true about spores?

A: They are light and small.
B: They are only produced by fungi.
C: They are only found in non-flowering plants.
  1. A only
  2. C only
  3. A and C only
  4. B and C only
22.
Which of the following statements show the characteristics of mould?

A: Mould turns bread mushy.
B: Mould can also grow on leather.
C: Mould is reproduced by spores.
D: Moulds do not make their own food.
  1. A and B only
  2. A and C only
  3. A, B and C only
  4. A, B, C and D
23.
Su Fen found some fungi growing on a tree as shown in the picture above. Which one of the following statements is true about these fungi?
  1. The fungi are part of the tree.
  2. The fungi are flowers of the tree.
  3. The fungi get their nutrients form the tree.
  4. The fungi need the tree trunk as a support to absorb more sunlight for growth.
24.
Which of the following statements about micro-organisms are true?

A: Yeast makes bread fluffy.
B: All micro-organisms are harmful.
C: Micro-organisms can be seen with the naked eye.
D: Some micro-organisms cause diseases such as sore throats and diarrhoea.
  1. A and B only
  2. A and D only
  3. A, B and C only
  4. A, B, C and D
25.
Which of the following materials are used in making the iron as shown below?


A: Plastic
B: Metal
C: Glass
  1. A only
  2. A and B only
  3. B and C only
  4. A and C only
26.
Four children, Ali, Bob, Cally and Don are talking about raincoats.

Ali says, "Raincoats are made of plastic because it is waterproof."

Bob says, "Raincoats are made of plastic because it is light."

Cally says, " Raincoats are made of plastic because it is durable."

Don says, "Raincoats are made of plastic because it breaks easily."

Which of the four children are correct?
  1. Ali only
  2. Ali and Bob only
  3. Ali, Bob and Cally
  4. Ali, Bob, Cally and Don
27.
Study the classification table below carefully.

Which of the following is Object X?
  1. Toothpick
  2. Paper Clip
  3. Cotton T-shirt
  4. Woollen Sweater
28.
Which one of the following properties is important when choosing the materials for making the part marked X of the object?

  1. Soft
  2. Shiny
  3. Flexible
  4. Allows light to pass through
29.
Lily knows, without having to open the jar cover, that she needs to refill the sugar in the sugar jar. Which one of the following materials is the sugar jar likely to be made of?
  1. wood
  2. ceramic
  3. aluminum
  4. clear plastic
30.
Which of the following statements about wood is/are true?

A: Wood can float on water.
B: Wood comes from trees.
C: Wood can also be used to make bowls.
  1. A only
  2. B only
  3. B and C only
  4. A, B and C

Section B

For questions 1-14, write your answers in the spaces provided.
1.
Mei Mei classified some animals into two groups, P and W, as shown below.

Group PGroup Q
DolphinAngelfish
TigerGoldfish
PlatypusShark

(a) Give a heading for Group P and Group Q.

Group P: ____________________________________________________________________

Group Q: ____________________________________________________________________

(b) State the difference between the animals in Group P and Group Q.

____________________________________________________________________

____________________________________________________________________
2.
Based on the pictures above, state two physical differences between Animal A and Animal B.

(a) ____________________________________________________________________

____________________________________________________________________


(b) ____________________________________________________________________

____________________________________________________________________
3.
Peter has a toy robot. The toy robot can walk and say, "Hello!" when you touch its hand.

(a) Name one similarity between the toy robot and a living things.

____________________________________________________________________

____________________________________________________________________

(b) Name two differences between the toy robot and a living thing.

____________________________________________________________________

____________________________________________________________________
4.
Study the following diagram below carefully.


Which of the letters (From A to E) can be used to represent each object below?

(a) Sparrow: _________________________

(b) Guppy: __________________________

(c) Woollen shirt: ____________________

(d) Grasshopper: ____________________
5.
Study the table given below. The table shows the characteristics displayed by four things, A, B, C and D.

ThingNeeds
air
Needs
Sunlight
to
survive
Can
Move
From
Place to
place
Needs
water
Needs food
A
B



C

D


Which of the letters (from A to D) can be used to represent each thing below?

(a) Rabbit: ___________________

(b) Papaya plant: _____________

(c) Car: _____________________

(d) Bracket fungi: ____________
6.
The diagram below shows a mushroom.


(a) Label the parts marked X to Z.

(b) Why are mushrooms considered as fungi and NOT as non-flowering plants?

____________________________________________________________________
7.
Annie put some animals into groups, W, X, Y and Z, based on their common characteristics as shown in the flow chart below.


Based on the information above, answer the following question.

(a) State ONE DIFFERENCE between animals in groups W and Z.

____________________________________________________________________

____________________________________________________________________

An animal, P, is described as follow:


It is a land animal with a pair of wings.

(b) Which one of these groups, W, X, Y or Z, does Animal P belong to?

____________________________________________________________________
8.
Look at the two plants in the diagram below.


List two similarities between the bird's nest fern and the moss.

(a) ____________________________________________________________________

____________________________________________________________________


(b) ____________________________________________________________________

____________________________________________________________________
9.
The diagrams below show two groups of plant parts.


(a) Suggest an appropriate heading for each group.

Group P:

____________________________________________________________________

Group Q:

____________________________________________________________________

(b) State one function for the plant parts in Group Q.

Group Q:

____________________________________________________________________

____________________________________________________________________
10.
Jerica took two identical pieces of bread from a loaf of bread. She toasted one piece and then left both pieces in identical sealed glass jars in a warm place.

After a week, she found more mould growing on one piece of bread than the other.


(a) Based on the information above, identify the jar with the toasted bread in it. Put a tick (√) in the correct box above.

(b) How does bread mould reproduce?

____________________________________________________________________

(b) Jerica said that the mould on the bread was a plant.
Was she correct?

Give a reason for your answer.

____________________________________________________________________

____________________________________________________________________
11.
Study the list of objects below. Group them under the correct headings in the following table.

rubber band wooden ruler leather belt
flag pole shoe lace telephone wire

Things that are not flexibleThings that are flexible












12.
The following are a list of items. Write down the materials most suitable for making them.


ItemsSuitable Materials
(a)shower curtain
(b)padlock
(c)windscreen of car
(d)flower pot
13.
In the table below, some objects have been classified according to the materials they are made of.

(a) Write down in the boxes the material from which each group of objects is made.

(b) Name another object which is made of the same material as Group B.

____________________________________________________________________
14.
The diagram below shows a screwdriver.


(a) Why is Part X of the screwdriver made of metal?

____________________________________________________________________

(b) Name a material that the handle can be made of.

____________________________________________________________________

Section A (Answers)

Answers

1.
B.
2.
D.
3.
A.
4.
A.
5.
C.
6.
A.
7.
C.
8.
B.
9.
A.
10.
B.
11.
C.
12.
D.
13.
B.
14.
A.
15.
C.
16.
B.
17.
B.
18.
D.
19.
B.
20.
C.
21.
A.
22.
D.
23.
C.
24.
B.
25.
B.
26.
C.
27.
B.
28.
D.
29.
D.
30.
D.

Section B (Answers)

Answers

1.
(a) P: mammals Q: fish

(b) Group P is covered with hair or fur but Group Q has scales.
2.
(a) Animal A has eight legs but Animal B has six legs.

(b) Animal A has two body parts while Animal B has three body parts.
4.
(a) E

(b) C

(c) B

(d) D
5.
(a) A

(b) C

(c) B

(d) D
6.
(a) X: cap
Y: gills
Z: stalk

(b) It does not make its own food, it does not have leaves.
7.
(a) Use the information gain, do not think of others. However, if it is not land then it must be in water.

(b) W
8.
(a) They are both non-flowering plants.

(b) They reproduce by spores.
9.
(a) P: Flowering plant.
Q: fruit.

(b) Produce seeds for the plant.
10.
(a)




(b) Spores.

(c) No. It can't make its own food as it does not even have leaves.
11.
(a)
Things that are not flexible

flag pole
wooden ruler

Things that are flexible
rubber band
leather belt
telephone wire
shoe lace
12.
(a) plastic

(b) metal

(c) glass

(d) ceramic
13.
(a) Group A: metal
Group B: plastic

(b) plastic bag
14.
(a) It is hard and strong.

(b) Plastic

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