St. Joseph’s Anglo-Chinese SchoolFirst Term Exam

F.1 Integrated Science

Time allowed: 1 hr. 15 min.

Total Score:100

1. The diagrams in this paper are not necessarily drawn to scale

2. Answer ALL questions and write your answers in the space provided.

Section A (20 marks)

Multiple Choice questions

Use an HB pencil to mark the answers on the MC answer sheet. You will score no marks for marking two

or more answers to the same question. Write your name and class number on the answer sheeet.

1. Which of the following is/are observation?

(1) An apple turns brown when it is cut and exposed to air (放置在空氣中).(2) There is a substance in the apple that may cause the apple to turn brown.

(3) An apple that is cut does not turn brown when it is placed in salt water.

A. (1) only B. (2) only

C. (1) and (3) only D. All of the above

2. The photo below shows a packet of shrimp cracker (一包蝦條 ). What is the mass of its content

measured in kg?

A. 0.4kg B. 4kg

C. 0.04kg D. 40kg

3. Which of the following apparatus is used to transfer a small amount of liquid?

A. Test tube B. Dropper

C. Beaker D. Reagent bottle

4. Which of the following pieces of apparatus is NOT necessary for boiling water in a beaker?

A. Bunsen burner B. Tripod

C. Thermometer D. Wire gauze

5. It should be careful when using a non-luminous Bunsen flame because

A. it is a blue flame

B. its air hole is open

C. it is unstable (不穩定)

D. its temperature is very high and is not easily recognised (不易被察覺).6. Which of the following reasons for pointing the mouth of test tubes away from your own face and

anybody else’s is correct?

A. There are hidden hazards (隱藏危機) in the laboratory.

B. A blue flame is too powerful and can dry off small amounts of liquids easily.

C. Large amount of chemical will easily overflow (滿溢) when you heat them.

D. You do not want to spill chemicals on anyone.

7. The correct steps of lighting a Bunsen burner are:

A. Open the air hole, turn on the gas tap, light a match, put the lighted match above the chimney.

B. Close the air hole, turn on the gas tap, s light a match, put the lighted match above the chimney.

C. Close the air hole, light a match, put the lighted match above the chimney, turn on the gas tap.

D. Light a match, open the air hole, turn on the gas tap, put the lighted match above the chimney.

8-9. A scientist studies the relationship between the temperature of water and its density (水的溫度和密度的關係).The experimental results are shown in the graph below.

temperature of water (C)

dens

ity

of w

ater

(g/

mL

)

0.9996

0.9997

0.9998

0.9999

1

0 2 4 6 8 10 12

8. What can you conclude from the experimental results?

A. The density of water (水的密度) is independent of its temperature.

B. The higher the temperature of water, the lower is its density.

C. The density of water is the highest at 4 oC.

D. Apart from temperature, the density of water is affected by other factors (受其他因素影響).

9. What is the independent variable in this experiment?

A. The density of water B. The temperature of water

C. The volume of water D. The weight of water

X10. Plants are usually green in colour because plant cells contain

A. chloroplasts. B. vacuoles.

C. cytoplasm. D. nuclei.

X 11. Which of the following statements about plants is INCORRECT?

A. Plants produce food by themselves.

B. Plants excrete waste.

C. Plants do not need oxygen (氧).

D. Plants can not live without water.

12. Which of the following statements is/ are correct?

(1) Students in the same class may not have equal weights.

(2) The people who can roll their tongues are superior (較優越) to the ones who cannot.

(3) Brothers and sisters do not have the same blood-types (血型).A. (1) only B. (1) and (2) only

C. (2) and (3) only D. (1), (2) and (3)

13. Which of the following variations among human are correct?

(1) Number of fingers (2) Length of fingers (3) Blood types

(4) Eye colors (5) Body weight

A. (1), (2), (3) only

B. (2), (3), (5) only

C. (1), (3), (4), (5) only

D. (2), (3), (4), (5) only

14.The bar chart below shows the numbers of students in a class after measuring a certain variation.

This variation is probably (可能是) about

A. the ability to roll the tongue

B. E.Q.

C. I.Q.

D. blood pressure.

Instruction (指引):

In answering questions 15, 16 and 17, refer (根據) to the following dialogue (對話) between two animals

X abnd Y.

15. (a) What kind of vertebrates does Y belong to?

A. Fish B. Amphibians

C. Reptiles D. Birds

16. What kind of vertebrates does Z belong to?

A. Fish B. Amphibians

C. Reptiles D. Birds

17. X may be

(1) a fish. (2) a bird. (3) a mammal.

A. (3) only B. (1) and (2) only

C. (2) and (3) only D. (1), (2) and (3)

X: Y, why is your body so cold? Did you catch a cold?

Y: No. My body temperature changes with the surroundings(環境 ). When I’m in a cold place, my body becomes cold too!

X: I see. Unlike you, my body temperature doesn’t change with the surroundings.What are those things on your body? I’ve seen them on Z’s body too!

Y: Oh, these are called scales. Mine are moist but Z’s are dry and hard.

X 18. Which parts of the microscope should be adjusted to view the image clearly?

(1) Objective (2) Coarse adjustment knob

(3) Fine adjustment knob (4) Mirror

A. (1) and (2) only

B. (1) and (3) only

C. (2) and (3) only

D. (2), (3) and (4) only

X 19. When a typed letter is observed under a microscope, the image will appear as

A. .

B. .

C. .

D. .

X 20.Which of the following about reproduction is/are INCORRECT?

(1) Sexual reproduction involves sperms and eggs joining together.

(2) Single-celled organisms undergo asexual reproduction and divide themselves into four each

time.

(3) Most bacteria reproduce by asexual reproduction.

A. (1) only

B. (2) only

C. (3) only

D. (1) and (2) only

Section B Questions (80 marks)

1. John is using a bottle of lubricating oil (潤滑劑) as shown.

(a) What does the warning sign on the bottle mean?

(b) What potential danger (潛在危險) is found in the above picture?

2. We can use the following method to measure the volume of a ping-pong ball.

(a) Name the apparatus A and B.

(b) What is the volume of the weight?

(c) Find the volume of the ping-pong ball. Show your calculations clearly.

weightping-pong ball

stringA B

water

3. Amanda wants to test the strength of three different brands of tissue paper (三種不同牌子紙巾的韌度). She designs the following experiment.

(a) Is Amanda’s test fair? Why or why not?

(b) Write down the variables of this experiment in the table below.

(c) Write down one safety precaution in this experiment.

4. One day, Kevin met a dog in the countryside.

(a) Find out three living things and three non-living things in the picture above.

TwoControlled variables

Independent variable

Dependent variable

weight

Brand B tissue paper strip

weight

Brand A tissue paper strip

Brand C tissue paper strip

weight

(b) Which two common (共同) characteristics of living things does Kevin show in the picture?

(c) How do these two characteristics help him survive (生存) ?

5. Read the following article (文章) about salmon (三文魚) and answer the questions that follow.

(a) Living things have seven common characteristics. According to the above article, list (列舉) four of

them.

(b) Which group of vertebrates do salmons belong to?

(c) List two features of the above group of vertebrates.

You have probably eaten salmons before. However, you may not know that salmons are very special. They travel between fresh water and salt water throughout their lives. They are born in freshwater rivers. Then they move to saltwater ocean to grow up. When they are ready to reproduce, they swim back to the freshwater river to lay eggs. After the eggs are laid, the adult salmons die and their bodies become the food for their baby salmons.

6. Construct a simple key to identify the following five animals.

snake, butterfly, dog, jelly fish (水母) , crocodile (鱷魚)

X 7. Cindy wants to observe the skin cells of an onion. She has eyepieces and objectives of the following

magnification.

Eyepieces Objectives

(i) 5X 5X

(ii) 10X 10X

(iii) 15X 40X

(a) To observe the maximum number (最多數目 ) of skin cells, what magnification of eyepiece and

objective should Cindy use?

(b) To observe the structure of onion skin cells in detail, what magnification of eyepiece and objective

should Cindy use?

(c) Calculate (計算) the magnification of the microscope in (i), (ii) and (ii) respectively.

X 8. The diagram below shows two cells:

Cell X Cell Y

Animals

With a backbone Without a backbone

Without scales With scales With wings Without wings

With legs Without legsA. _____

B. ______ C. ______

D. ______ E. ______

(a) Name the structures (構造) A to D shown above. (4 marks)

A: ______________________ B: ______________________

C:_ _____________________ D: ______________________

(b) Which cell, X or Y, is a plant cell? State one reason. (2 marks)

_____________________________________________________________________________

(c) State one function (功用) of structure A. (2 marks)

_____________________________________________________________________________

(d) State two function of structure C. (4 marks)

_____________________________________________________________________________

(e) State one function of structure D. (2 marks)

_____________________________________________________________________________

(f) State the difference in size and shape between an animal cell and a plant. (4 marks)

difference in size: ______________________________________________________________

difference in shape: ____________________________________________________________

X 9. The diagram below shows two cells of human beings.

(a) Identify which of the above is a sperm and which is an egg.

(b) Which one has food reserve? Why does it have food reserve?

End of Paper

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