Skor a 2011

PROGRAM SKOR A PMR SESI 2011

Subjek : SAINS

Tarikh : 20 JULAI 2011

TULISAN & JAWAPAN

1. Pastikan tulisan sentiasa kemas dan mudah dibaca

2. Potong perkataan yang tersalah tulis SEKALI SAHAJA (sekiranya anda menggunakan pen)3. Jangan menggunakan simbol kecuali apabila diminta

4. Elakkan menggunakan simbol bagi atom atau molekul kimia

5. Jangan menjawab menggunakan bahasa yang meleret-leret

EXP: Function Of Human Ear

Transform sound vibration into nerve impulses

Or

Function of human ear is transform sound vibration into nerve impulses

MELABEL GAMBARAJAH 1

Pastikan anda lukis garisan yang lurus

Pastikan hujung garisan itu kena tepat pada bahagian yang dikehendaki

Jika anda perlu melabel lebih daripada satu bahagian, pastikan setiap garisan itu tidak bertindan antara satu sama lain

*Carries male gametes

*Carries oxygen around the body

MELABEL GAMBARAJAH 2

Label gambarajah dengan menggunakan perkataan yang diberikan.

•Tulis setiap huruf mengikut jawapan yang diberikan.

Nucleus Cytoplasm Membrane cell

A

B

C

Nucleus

Membrane cell

Cytoplasm

ANAK PANAH

1. Persamaan kimia

Asid + Alkali Garam + air 2. Food chain

FOOD CHAIN

Boleh menggunakan

padi tikus helang

Boleh menggunakan ayat

Padi dimakan oleh tikus, tikus dimakan oleh helang.

Food chain 2

padi tikus helang

1. What happen to an eagle when the population of rat increase?Population of eagle increase.

2. What happen to paddy field when the population of eagle increase?Population of paddy field increase.

OBSERVATION

LIHAT

RASA

DENGAR

HIDU

OBSERVATION :Paku tekan jatuh apabila rod dipanaskan

State your observation after 10 minute the experiment are conducted.

1. The thermometer reading increase

2. The temperature reading in beaker X higher than temperature in beaker Y

SIMILARITIES

CARA MENJAWAB: Both / Kedua-duanya

and / dan

Contoh: ( Function of carbohydrate and fat )

1.Both supply energy

2.Carbohydrate and fat supply energy

Similarities - example

Artery and vein

1.Both carries blood

2.Artery and vena carry blood

DIFFERENCES

CARA MENJAWAB:

…….but ………

………. While ………

Artery and vein

Artery carry oxygenated blood but vein carry deoxygenated blood.

• Artery carry oxygenated blood whereas vein carry deoxygenated blood.

X Y

State the different in colour between car X and car Y . Nyatakan perbezaan antara kereta X dan kereta Y dari segi warna.

X is white, Y is black or Car Y is darker than Car X

COMPARE

Similarities – 1 Mark

Differences – 1 Mark

Comparison between boiling and Evaporation – (Process)Similarities:-Similarities:-Boiling and evaporation (Both) are a process in which

liquid changing into a gas and heat is absorbed.Differences:-Differences:- Evaporation takes place at all temperatures below

boiling point but boiling takes place at the boiling point only.

Evaporation is a slow process, boiling is a very fast process

- Evaporation - takes place from the surface of the liquid. - Boiling – throughout the liquid.

EXPLAIN WHY…

CARA MENJAWAB..

USE WHAT AND WHY..

Renal artery has thicker wall because it carries blood in higher pressure.

WHAT

WHY

Knowing the limitation of measuring apparatus

35

34

= 34.2cm³

or 34.2 ml

Measuring cylinder can Measure the volume of liquidup to 0.1 ml accuracy.

Burette

27

28

= 27.8 cm³ or 27.8 ml

Burette can measure up to 0.1 ml accuracy

CALCULATION Step 1 – write down the formula Load X distance of load = effort X distance of effort

Step 2 – substitute with the relevant values 5 N X 16 cm = Effort X 20 cm

Step 3 – solve the problem to get the answer Effort = 5N X 16 cm 20 cm Effort = 10 N

WORK DONE Work done =Force (N) X Distance (m) Work done = (52+28)x10N X 10 m = 800 N X 10 m = 8000Nm = 8000J = 8 KJ

VARIABLE

From table

From question

From picture / experiment

Graph

manipulated

responding

TABLE

Variables – from observation table

Length of nichrome wire (cm)

Current (A)

20 1.5

30 1.2

40 0.9

VARIABLE

Manipulated : Length of nichrome wire

Responding :

Ammeter reading

From QUESTION

Both the iron and glass are heated simultaneously. The time taken for thumbtack drop is recorded.

manipulated

responding

A student carried out an experiment to study the affect of light intensity on the rate of photosynthesis.

Manipulated :

Responding :

Light intensity

Rate of photosynthesis

Example:……

From PICTURE / EXPERIMENT

Manipulated

Responding

Manipulated :

Responding :

Types of rod

Time taken for thumbtack fall down

From graph

Manipulated variable

Responding variable

Thickness of wire / mm

Current / A Manipulated : Thickness of wire

Responding : ammeter reading

DRAW GRAPH

Line Graph

Bar Graph

Line Graph

Bar graph

A B C

Check this graph….

HYPOTHESIS

CARA MENJAWAB:

1. _____________ affects ____________________.

Manipulated V Responding V

Hypothesis: Types of surface affects the thermometer reading

Variables :-a.Constant – Base areab.Manipulated – Position of centre of gravity

( )c.Responding – Stability of object

Position of centre of gravity affects the stability of object

Hypothesis ????

2. The lower / higher / increase / decrease ______

** Gunakan manipulated V dahulu, diikuti dengan responding V ……

Hypothesis: The conductivity of heat increase, time taken for thumbtack fall down decrease

Manipulated

Responding

The higher the centre of gravity (variable that is manipulated)

The less stable the object (variable that respond)

The lower the centre of gravity (variable that is manipulated)

The more stable the object (variable that respond)

INFERENCE

________ _______ because ___________.

What how ( responding v) why ( manipulated )

CARA MENJAWAB :

Food Oxygen Shelter

…………………… ………….……………

because …………………………………………………..

FISH DIE

NECESSITY

NO ………..

Balloon slopes to the left because air has mass.

Balloon A

Balloon B

CONFIRMATION TEST

_____________ tested by _______________ What? Substances use

change from ____________ to _______________ .

+ve resultEXAMPLE: Carbon dioxide tested by lime water change to cloudy.

An acid tested by red litmus paper changed from red

to blue.

Starch tested by iodine solution changed to dark blue

WHAT SUBSTANCE USE

+VE RESULT

DEFINING OPERATIONALLY

___________ shows by _____________________

What what can you observed from t the experiment.

@

______________ is __________________________

What what can you observed from the experiment.

Q: State the operational definition of a good heat conductor.

Good heat conductor is the time taken thumbtack fall down / drop.

WHATOBSERVATION

Q: State the operational definition of a good heat absorber.

Good heat absorber is the increasing the thermometer reading