Answer all the question

1. Diagram 1 shows some measuring tools.

P Q R

……………………………….

……………………………….

……………………………….

Diagram 1

(a) On Diagram 1, label P, Q and R with the following words.

External calipers Triple Beam balance Thermometer

[3 marks]

(b) Draw lines to show the correct match between the measuring tools and their uses. Draw the lines as shown below.

Measuring tools Uses

Measure the mass of an object

Measure the weight of an object

Measure the temperature of an object

Measure the external diameter of an object

R

Q

P

2.

Diagram show an organization of cell.

CellSel

J:__________________

L:________________K:________________

(a) On the diagram, label J, K and L in the spaces provided using the following words.

Organ System Tissue

]

(b)

Draw a line to match the type of cell functions.

Allows movementMembolehkan pergerakan

Sends information to all partsof the bodyMenghantar maklumatke seluruh bahagian badan

Covers the body surfaceMenutup keseluruhan badan

[ 3 markah]

3. Rajah di bawah menunjukkan dua jenis neraca, X dan Y

BALANCE X BALANCE Y

(a) State the uses of balance X and balance Y

(b) X:____________________________

(c)Y:____________________________

(2 markah)

(b) What is the standard unit found on the balance X and Y ?

X:___________________________

Y:___________________________

(2 markah)

Table 1 shows the values obtained when an object is weighed by using a balance of X and Y.

Balance Weighed on Earth Weighed on Moon

X 1 kg 1 kg

Y 10 N 1.67 N

Table 1

Explain information from Table 1__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(2 Markah)

4. Diagram 3 shows pictures of three states of matter, P, Q and R.

P Q R

Diagram 3

(a) In the spaces below, draw the arrangements of particles in the three states of matter, P, Q, and R.

[3 marks]

(b) Give another one example of a substance that has a similar arrangement of particles as matter Q.

……………………………………………………………………………………………

[1 mark]

RQP

(c) Density is defined as mass per volume . 20 cm3 mass of iron is 158g . Calculate the density of the iron

5. Diagram 3 shows some resources on Earth.

(a) Name resources P, Q and R on Diagram 3.

[3 marks]

R …………………………….

Q …………………………….

P: …………………………….

Diagram 3

RESOURCES ON EARTH

(b) State one importance of

R: …………………………………………………………………………………………………….

Q: …………………………………………………………………………………………………….

[2 marks]

(c) Plants need R to live. Name another resource that plants need to live.

………………………………………………………………………………………………………..

[1 mark]

6. There are various field of science such as botany , astronomy , biology , geology , and many more. . Every branch of science field sans can produce professional scientists in many field.

(a) .

(i) The picture shows a career related to science . Name a career related to the image

(ii) .

____________________________________________________________[1 markah]

(ii) What is the role of the career .

____________________________________________________________[1 markah]

(iii) Name of one other career related to astronomy field

_______________________________________________________________[1 markah]

(b) Steps scientific investigations carried out to obtain answers about a natural phenomenon . Complete the flowchart steps of investigation.

[3 markah]

Identifying Problem

Analysing and Interpreting data

Collecting data

Planning

Experiment

Report

Writing

7. Diagram 2.1 shows an activity carried out by a student using sulphur powder and iron filings.

(a) Substance M is formed when iron filings and sulphur powder are mixed together. What Is substance M?

……………………………………………………………………………………………………………………………………………….

[1 mark]

(b) How can you separate the iron filings from the sulphur powder in M?

…………………………………………………………………………………………………………………………………………………

[1 mark]

Diagram 2.1

MSulphur powderIron filings

Diagram 2.2

M

(c) M is then heated as shown in Diagram 2.2 and a new substance, N is formed. What is N?

…………………………………………………………………………………………………………

[1 mark]

(d) State two properties of N.

(ii) …………………………………………………………………………………………………….

(iii)…………………………………………………………………………………………………….

[2 marks]

(e) State one difference between substance M and substance N.

……………………………………………………………………………………………………………………………………………………

[1 mark]

8. Diagram 2.1 shows a beaker containing three materials with different densities.

(a) Based on Diagram 2.1, arrange the three substances according to their densities in an ascending order.

………………………………………………………………………………………………………………………………………………………….

[1 mark]

(b) Which of the following uses the principle of density? Tick (√ ) the correct answer in the box given.

Hot air balloon Car Submarine Bicycle

[2 marks]

Diagram 2.1

Oil

Water

Cork

Measuring cylinder

(c) Diagram 2.2 shows how logs are transported in the river.

Why do logs float in water as shown in Diagram 2.2?

……………………………………………………………………………………………………………………………………………………. [1 mark]

(d) Why is it easier for a person to float in the sea than in the river?

…………………………………………………………………………………………………………………………………………………..

[1 mark]

(e) Why oil is used to kill mosquito larvae?

……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

[2 marks]

Diagram 2.2

7.