SECTION A/ A[ 30marks/ ]Time/: 45 minutes/

Answer all the questions./ Instructions: Each question is followed by four options, A, B, C and D. Choose the correct answer. / A,B.C.D

1. Name the group of the microorganisms in Diagram 1 1 .A. Protozoa / B. Bacteria / C. Algae / D. Virus/

2. Diagram 2 shows a type of microorganism. Name the microorganisms 2 . .

A. Bacteria / B. Fungus / C. Virus / D. Germ /

Bacteria / Protozoa / Virus/

Z

Diagram 33. Diagram 3 shows the types of microorganisms. 3 . Which of the following is Z Z ?

A. Fungi / B. Mould / C. Yeast / D. Amoeba /

4. Which of the following living things are microorganisms? ?

A. I and iiB. I and iiiC. II and ivD. iii and iv

5. Which of the following foods are using yeast? ?

A. i and iiB. I and ivC. ii and iiiD. iii and iv

I cup of flour /1 1/2 cup of warm water / 1/2 1 teaspoon of dried yeast / 1 1 teaspoon of suger / 1

6.The information below shows the ingredients used to make dough. .

Which of the following materials causes the dough to rise ? .

A. Flour / B. Warm water / C. Yeast / D. Sugar /

7. Which is a microorganism ? ?

A. Salt / B. Book / C. Yeast / D. Sugar / 8. Which microorganisms is the smallest? ?

A. Virus / C. Fungus / B. Yeast / D. Amoeba / 9. Why are microorganisms not visible to the naked eye? .

A. They move fast / B. They are very tiny / C. They are harmful / D. They grow faster /

10. Fungi can be found growing on / I. Mouldy bread / II. Rotten food / III. Dead plants /

A. I and II only C. II and III only

B. I and III only D. I,II and III

11. Diagram shows an experiment. A slice of bread was let in a plastic bag. The area of black spots on the bread was increasing with the days. . . .

What conclusion can be made through this experiment? ?

A. Microorganism are harmful/ B. Microorganisms are poisonous/ C. Microorganisms brearthe/ D. Microorganisms grow/

12. Which statement about microorganisms is true? ?

A. Microorganisme are all around us / .B. Microorganisms are only found in toilets/ C. All Microorganisms can cause illnesses / .D. All Microorganisms cannot be destroyed/ .

13. Microorganisms can be seen through aA. Mirror / C. Telescope / B. Microscope / D. Computer /

14. Diagram shows a piece of bread that has left for a few days.

Based on the observation , fungus has grown on the bread. Which of the following conditions causes the fungus to grow on it? . .

A. Damp and Cold / B. Damp and warm / C. Dry and warm / D. Dry and cold /

15. Which of following statements are true about these microorganisms .

i. They are living things .

ii. They can breathe .

iii. They can be seen with naked eyes. .

A. 1 and II onlyB. I and III onlyC. II and III onlyD. I,II and III

16. Some suger is mixed with warm water in a flask. A spoonful of yeast is added to the mixture which is then stirred with a spoon. A balloon is fitted tightly over the mouth of the flash. It is then left aside for 20 minutes. Diagram 2 shows the observation made. . . . 20 .

What has caused the balloon to inflate ?/ ?

A. The sugar / B. The yeast / C. The stirring / D. The warm water /

17. All of the following animals take care of their youngs in the same way except . .

18. A hen protect her young? .

A. By flapping her wings C. By getting food for them B. By keeping them in a burrow D. By attacking the enemy when threatened

Take care of its eggs / Take care of its youngs / Lay eggs on a top palce /

19. Which animal is related with the below information / ?A. Eagle / B. frog / C. monkey / D. snake /

20. Which of the following is not means of seed dispersal by palants? .

A. Animals / B. Water / C. Wind / D. Rain /

Rubber / Balsam / Ladys finger/ Long beans/

21. How are the seeds of the plants above dispersed .

A. Water / B. Wind / C. Animals / D. Explosive mechanism /

22. Which of the following can be dispersed in the same way as the fruits above? ?

23. What do the activities in the diagram show? ?

A. Competition / C. Reproduce / B. Conservation / D. Food Chain /

24. How many food chain are there in the food web ? .

A. 4 B. 5 C. 6 D.7

25. Which of the following animals is a herbivore in the habitat? ?

A. Snake / b. Eagle / C. Bee / D. Rat /

26. A food chain a habitat is shown in diagram below. .

Owl / XButterfly/ Honey/

What is the possible organism X likely chain? / X ?

A. Rat / B.Frog / C. Rabbit/ D. snake/

27. Which can be a producer in a food chain? . I Butterfly - II Grasshoppers - III Lalang - V Hibiscus plants - A. I and II B. III and Iv C. I,III and IV D. I,II,III and IV

28. How many omnivores are there in the food web in the diagram? ?

A. 1 B. 2 C. 3 D. 4

Plant / worm/ Chicken / Python/

29. The diagram shows a food chain. Which organisms has the largest population? . .

A. Plant / B. worm/ C. Chicken / D. Python/

30. Which of the following food chains is not correct ? .A. Grass/ Sheep/ tiger/ B. Fruits/ Squirrel/ eagle/ C. Seeds/ duck / Chicken / D. Honey / butterfly/ frog/

Section B B Answer all questions. .

Write your answers in the spaces provided. .

1. Table below shows the result of the investigation., .

Number of spoonful of yeast ()Rise in the dough (cm) (cm)

12

24

36

(a) What is the purpose (aim) of the investigation ? ?

(b) State : :

i. What is changed (manipulated variabel) ( )

ii. What is observed (responding variable) ( )

(c) State two other variables that is kept the same. () .

i. ____________________________________________________________________ii. ____________________________________________________________________

2. Diagram shows the result of an investigation carried out by a group of pupils to find out if water is necessary for microorganisms to grow. They toasted a piece of bread in the toaster to dry it and sprinkled a few drops water on another piece. The pieces of bread were left at a dark corner of a science laboratory for four days. , . , . . .

(a) State two information that you can obtain from diagram. .

i. ________________________________________________________________

ii. ___________________________________________________________________

(b) In this investigation , state what is : , .

(i) Kept the same / : ____________________________________________

(ii) Changed / : _____________________________________________________________

(c) What conclusion can be made from this investigation ? ?

3. Kamaleshwaran viewed the samples of three types of water under a microscope. Table shows the results of this investigation. . .

Type of water Boiled water River water Drain water

Presence of microoraganisms NoYesYes

(a)What is the aim of this investigation? ? __________________________________________________________________ __________________________________________________________________ (1 mark / 1 )(a) Why do you think microorganisms is absent in boiled water? ?____________________________________________________________________ ____________________________________________________________________ (1 mark / 1 )

(c) What will happen if river water is used as drinking water without boiling? ?____________________________________________________________________ ____________________________________________________________________ (1 mark / 1 )

(d) Diagram shows an observation of a microorganism from the sample of drain water under a microscope., .

What can you infer from the observation in diagram? ?

____________________________________________________________________ ____________________________________________________________________ (2 marks / 2 )

4The bar chart below shows the number of living things in a habitat.

Number

Living things / (a) Write two food chain based on the bar chart. .______________________________________________________________________________________________ [2 mark](b) Name the carnivores in the food chain. . ______________________________________________________________________________________________ [1 mark](c) State what will happen in each situation below. .i. All the grasshoppers die in the area. ? _______________________________________________________________________________________ [1 mark]ii. The number of frogs suddenly increases in the habitat. ? ____________________________________________________________________________________________ [1 mark]