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SAINTIS MUDA SEKOLAH MENENGAH (JABATAN PELAJARAN PULAU PINANG)

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STATION 1: THE MAGNIFICENT FOUR (15 minutes)

TASK : Carry out the activities to identify four types of forces.

Materials / Apparatus

A coin

A plasticine ball

A plastic ruler

Woolen cloth

Some bits of tissue paper

Two magnets

Procedure

1. Slide a coin on the floor.

2. Lift a plasticine ball from the table and drop it to the floor.

3. Rub a plastic ruler with a woolen cloth and bring it close to some tiny bits of

tissue paper.

4. Bring the south pole of a bar magnet close to the north pole of another barmagnet.

5. Record your observations in the table given.

6. Write a conclusion for this experiment.

Force is required in most of our daily

activities. All activities that involvemovement of the body require force.

Force can change the shape, position,

speed or direction of the movement of

an object. There are many types of

forces.


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STATION 1:

GROUP NUMBER:____________________________________

ANSWERS

My Observation:

Activity Observation Type of force

1. A coin is slid on

the floor.

2. A plasticine ball is

dropped to the

floor.

3. A plastic ruler is

rubbed with a

woolen cloth and

brought close to

some tiny bits of

tissue paper.

4. The south pole of a

bar magnet is

brought close to

the north pole of


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another bar magnet.

Conclusion:

STATION 2: THE SIZE OF MY FOOD PLOT (15 minutes)

TASK : Carry out the activity to see to estimate the area of an leaf.


Leaf

Graph paper

Glue

Scissors

Procedure

1. Place a leaf on a piece of graph paper.

1. Draw an outline of the shape of the leaf.

2. Cut and paste the graph paper on the answer sheet.

3. Count the number of 1cm x 1cm squares covered by the leaf. *

* The estimated area is the number of 1 cm x 1 cm squares.


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Questions

1. Is this a good way to estimate the area of a leaf?

Give a reason for your answer.

STATION 2:

GROUP NUMBER:____________________________________

ANSWERS

My Observation:

Paste your graph paper here


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Number of 1cm x 1 cm squares = _____________

Area of leaf = _________________

1.

STATION 3: AN INTERESTING CONCONCTION (15 minutes)

TASK : Carry out the activity to see what happens.


Beaker (250 ml)

Measuring cylinder (100 ml)

Measuring cylinder (10 ml)

Syringe

Glass rod Spatula

Filter funnel

Procedure

According to the Kinetic Theory of

Matter, matter is made up of discrete

particles which are atoms or molecules.

Particles of matter are not visible by

the naked eye but we can show that

matter is made up of particles. The

three states of matter are solid, liquid

and gas.

Vinegar

Dishwashing liquid

Baking soda

Water

Plastic bottle

String

Metre rule

balloon


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1. Fill a beaker with 100 ml of water and 5 ml of dishwashing liquid.

2. Add 10 ml of vinegar and a spatula of baking soda to the water.

3. Stir the mixture. Record your observation.

4. Fill the plastic bottle with 50 ml vinegar.

5. Mix 1 spatula of baking soda with some water. Pour the solution into the plastic

bottle.

6. Quickly put a balloon over the mouth of the bottle.

7. Measure and record the maximum circumference of your balloon.

Questions

1. What has happened?

2. What would you expect to see if more vinegar and baking soda is used?

STATION 3:

GROUP NUMBER:____________________________________

ANSWERS

My Observation:

Activity Observation

Vinegar, dishwashingliquid and baking sodais added to water.

1.


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2. When more vinegar and baking soda is added to water,

Maximum Circumference of our balloon: cm

STATION 4: MY TASTE ORGAN (15 minutes)

TASK : Carry out the activity to see to identify different areas of taste on a

tongue.


Solution A, B, C and D


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Distilled water

4 droppers

Cup

Procedure

1. Rinse your mouth with the clean water.

2. Put 2 drops of solution A on your tongue with a dropper.

3. Record the taste you get in the table below.

4. Repeat steps 2 and 3 for solutions B, C and D.

5. Record your observation.

Questions

2. Why do you have to rinse your mouth with distilled water?

3. Give an example of the food which tastes like each of the solutions.

3. Why is it that when your nose is blocked, it is difficult to taste your food?

STATION 4:

GROUP NUMBER:____________________________________

ANSWERS

My Observation:

Solution Taste

A

B

C

D


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4. I have to rinse my mouth with distilled water

2.

Solution Example of a food

A

B

C

D

4. When my nose is blocked, it is difficult to taste my food because

STATION 5: SEE IT CLEARLY (15 minutes)


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TASK : Carry out the activity to observe a magnified image of organisms.


Microscope

Slide X

Slide Y

Procedure

1. Observe slide X through the microscope.

2. Draw your observation in the space below.

3. Record the magnification that you have used.

4. Repeat steps 1 to 3 for slide Y.

Questions

1. What is the name given to a minute organism which cannot be seen with the

naked eye?

2. Name the organisms that you have observed.

3. Classify the organisms into 2 suitable groups

STATION 5:

GROUP NUMBER:____________________________________

ANSWERS

My Observation:


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Slide X

Magnification:

1. The name given to a minute organism which cannot be seen with the naked eye:

2. Slide X :

Slide Y :

3. I classify the organisms into 2 groups.

Organism Group

STATION 6: SINGLE ME OUT! (15 minutes)

Slide Y

Magnification:


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TASK : Carry out the activity to separate the components of a mixture.


Beaker (250 ml)

Spatula

Glass rod

Filter funnel

Petri dishes

Retort stand and clamp

Procedure

1. Observe the mixture of 3 substances X,Y and Z.

2. Carry out the experiment to separate the substances.

3. Identify the substances and describe the method that you have used for

each separation.

Questions

1. How can you separate salt from the sea water?

2. Why do we boil water before drinking it?

3. Why is distilled water not suitable for our health?

A mixture consists of

two or more elements

or compounds. A

mixture can be

separated through

physical methods.

A mixture of substances X,Y and Z

Water

Filter paper

Bar magnet


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STATION 6:

GROUP NUMBER:____________________________________

ANSWERS

My Observation:

Substance Method of separation

1. I can separate salt from the sea water by

2. We boil water before drinking it

3. Distilled water is not suitable for our health because


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Marking scheme

STATION 1: THE MAGNIFICENT FOUR (10 Marks)

Activity Observation Type of force

1. A coin is slid onthe floor.

The coin stops moving after ashort while.

Frictional force

2. A plasticine ball is

dropped to thefloor.

The plasticine ball falls to the

ground.

Gravitational force

3. A plastic ruler is

rubbed with a

woolen cloth and

brought close to

some tiny bits of

paper.

The tiny bits of tissue paper are

attracted to the ruler.

Electrostatic force

4. The south pole of a

bar magnet is

brought close to

the north pole of

another bar magnet.

The magnets are attracted to each

other.

Magnetic force

(8 marks)

Conclusion: A force can make a moving object come to a stop, cause an object at

rest to move and cause objects to be attracted to each other. (2 marks)

STATION 2: THE SIZE OF MY FOOD PLOT (10 marks)

(4 marks)


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Number of 1cm x 1 cm squares = (refer to graph) (2 marks)

Area of leaf = (the same as no.of 1cmx1cm squares) (2 marks)

1. No, because some area is left out. (2 marks)

STATION 3: AN INTERESTING CONCONCTION (10 marks)

Activity Observation

Vinegar, dishwashing liquid and bakingsoda is added to water.

Bubbles are formed.

(2 marks)

1. Vinegar reacts with baking soda to form a gas.The gas produces tiny bubbles of soap. (2 marks)

2. More bubbles are produced. (2 marks)

Maximum Circumference of our balloon: 61.2 cm (1 decimal place) (4 marks)

STATION 4: MY TASTE ORGAN (10 marks)

Solution Taste

A (vinegar) Sour

B (honey) Sweet

C (coffee) Bitter

D (soya sauce) Salty

(4 marks)

1. To clean the tongue. (2 marks)

2. (2 marks)

Graph paper


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Solution Example

A Mango

B Sugar

C Bitter gourd

D Salt

3. Because the sense of smell and the taste work together . (2 marks)

STATION 5: SEE IT BIG! (10 marks)

Slide X - Drawing and magnification (3 marks)

Slide Y - Drawing and magnification (3 marks)

1. microorganism (1 mark)

2. Slide X : paramecium (A)

Slide Y : hydra (B) (2 marks)

3. (A) - unicellular organism (B) - multicellular organism (1 mark)

STATION 6: SINGLE ME OUT! (10 Marks)

Substance Method of separation

Iron powder Using a magnet.Iron powder will be attracted to a magnet

Sawdust Put the remaining mixture into a beaker of water.The sawdust will float to the top.

A spatula is used to remove the sawdust.

Sand Filtration.The sand is collected in the filter funnel.


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(6 marks)

1. evaporation (1 mark)

2. to kill the bacteria/microorganisms (2 marks)

3. distilled water does not contain minerals (1 mark)

MATERIALS AND APPARATUS

Question Apparatus Quantity Material Quantity

1 50 sen coin

Plasticine ball

Plastic ruler

Woolen cloth

Tissue paper

Bar magnets

1111

12

2 Leaf

Graph paper

Glue

Scissors

11 piece1 bottle1 pair

3 Beaker (250 ml)

Measuring

cylinder (100 ml) Measuring

cylinder (10 ml)

Syringe

Glass rod

Spatula

1

1

11111

Vinegar

Dishwashing liquid

Baking soda Water

Plastic bottle

String

Metre rule

Balloon

100 ml10 ml

½ beaker200 ml

1111


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Filter funnel

4 Droppers

Beaker (100 ml)

44

Vinegar (Solution A)

Honey (Solution B)

Coffee (Solution C)

Soya sauce(Solution D)

Mineral water

Paper cup

10 ml10 ml10 ml10 ml

1 bottle1

5 Microscope 1 Slide X(paramecium/euglena/ameba)

Slide Y(hydra/spirogyra)

1

1

6 Beaker (250 ml)

Spatula

Glass rod

Filter funnel

Petri dishes

Retort stand andclamp

11114

1 set

Iron powder (X)

Sawdust (Y)

Sand (Z)

Water

Filter paper

Bar magnet

1 spoonful1 spoonful1 spoonful

100 ml11

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