Set 1 sains tingkatan 3

7/30/2019 Set 1 sains tingkatan 3

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QUESTIONS

STATION 1

Force is required in most of our daily activities. All activities thatinvolve movement of the body require force. Force can change theshape, position, speed or direction of the movement of an object.There are many types of forces.

In the following task, you will identify four types of forces.

Materials/ apparatus

A coin

A plasticine ball

A plastic ruler Wool cloth

Some bits of tissue paper

Two magnets

Procedure

Carry out the activities below. Then, write down your observation andidentify the four types of forces.

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 bar magnet.5. Record your observations in the table given.


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STATION 1

GROUP NUMBER:________________________________

Complete the table below.

Activity Observation Type of force

1. A coin is slided onthe floor.

2. A plasticine ball isdropped to thefloor.

3. A plastic ruler,rubbed with awoolen cloth, isbrought close to

some tiny bits ofpaper.

4. The south pole of abar magnet is broughtclose to the northpole of another barmagnet.

[8 marks]Conclusion

1. Force can change the shape, _________ and ________of the movement of an object.

[2 marks]


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STATION 2

Power is the rate of doing work, that is, the work done in

one second.

WORK DONE (J) = FORCE (N) X DISTANCE (m)

POWER (WATT) = WORK DONE (J)

TIME (s)

APPARATUS / MATERIALS.

Bag, stopwatch, measuring tape (meter), weighing machine.

PROCEDURE

1. Hold the bag and stand on the weighing machine.Record your total mass in kilogram (kg) and calculate

the total weight in newtons (N).

* (1 kg has a weight of 10 N )

2. Carry the bag and run from position A to B.

3. You have to record the time taken to run from point A to

B.4. Measure the distance between A and B.

5. Record your results in the space provided.

6. Then, calculate the work done and power.


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STATION 2

GROUP NUMBER:______________________________

OBSERVATION:

Total mass = _____________

Total weight = ___________________

Distance between A and B = ____________

Time taken to run from A to B = ______________

My calculation:

Work done =

Power =

[10 MARKS]


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STATION 3

WHICH MUG ABSORBS MORE HEAT?

Material /apparatus

2 mugs of different colour, Bunsen burner, thermometer, water,wire gauze, tripod stand and stopwatch

PROSEDURE

1. Fill up the mugs with 100ml of water.

2. Record the initial temperature of the water in the

mugs.

3. Place both mugs in the sun / oven for 5 minutes.

4. Record the final temperature of the water inside

each mug.


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STATION 3

GROUP NUMBER:________________________________

OBSERVATION:

Typeof

mug

Temperature of water( C)

Rise in temperature(C)

Initial final

A

B

[6 marks]

DISCUSSION

1. Mug________ has a higher rise in temperature afterbeing under the sun / in the oven for 5 minutes.

2. The _______ surface is a good absorber of heat.

3. When heat energy is supplied to a substances thetemperature of the substances will ___________

CONCLUSION

_________________________________________________

[ 4 marks ]


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STATION 4

FLOWER! FLOWER! FLOWER!

Material / Apparatus:Flower, blade, magnifying glass, cover slip, glassslide, a piece of marble and microscope.

Steps:

1. Using the blade, carefully cut the flower

longitudinally into halves and remove the stamen

and pistil.

2. Observe the ovule in the ovary with the help of a

magnifying glass.

3. Draw your observation and label your diagram.4. Take one of the stamens that you have removed

from the hibiscus flower and dust some pollen

grains from the anther onto a glass slide.

5. Put a drop of water on the pollen grains and

cover the glass slide with a cover slip.

6. Observe the pollen grain under a light

microscope and draw it in the box provided.

7. Record the magnification of the microscope that

you have used to observe the pollen grain.


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STATION 4

GROUP NUMBER:____________________________________

A POLLEN GRAIN

Ma nification :

ARRANGEMENT OF OVULES IN THE OVARY


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Conclusion:

1. Name the female and male gamete of the flower:

a) male gamete : _________

b) female gamete : _________

2. Male reproductive part of flower consists of ___________

and ______________.

[ 4 marks ]


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STATION 5

HOW TO MEASURE THE VOLUME OF REGULAR ANDIRREGULAR SHAPED SOLIDS?

Materials: Marbles, stone, water, thread.

Apparatus: 200 ml measuring cylinder.

Methods:

1. Fill a measuring cylinder with 100 ml of water.

2. Record the initial reading of the water level.

3. Drop a stone slowly into the measuring cylinder.

4. Record the reading of the water level in the

measuring cylinder.

5. Repeat steps 1 to 4 with four marbles.


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STATION 5

GROUP NUMBER:________________________________

Observation:

Solid Initial reading(ml)

Final reading(ml)

Volume of solid(ml)

Stone

Fourmarbles

Discussion:

1. Calculate the volume for one marble.

_______________

2. Why do we use four marbles and not just one marble tofind its volume?

__________________________________________________

Conclusion:

1. The volume of a regular and irregular object can bedetermined by using the ____________________method.

[4 marks]


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STATION 6

Aim:To carry out food tests for the given solutions.

Apparatus / Materials:Solution X, Y and Z, 3 test tubes A, B and C, 3 syringes,filter paper and iodine solution.

Instruction:

1. Use a syringe to put 2 ml of solution X in test tube A

and one drop on the filter paper.

2. Use another syringe to put 2 ml of solution Y in test

tube B and one drop on the filter paper.

3. Repeat step 2 for solution Z in test tube C and one

drop on the filter paper.

4. Then, use a dropper to add 3 drops of iodine

solution into each of the test tubes A, B and C.

4. Record your observation in Table 1(a).

5. Observe the filter papers and record your results in

Table 1(b).


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STATION 6:

GROUP NUMBER:_________________________________

Observation:

Test tube Observation

A

B

C

Table 1 (a)

Filter paper Observation

Solution X

Solution Y

Solution Z

Table 1(b)[ 6 marks ]

Conclusion:

_________________________________________________

1. Name the class of food in Solution X and Solution Z.

Solution Class of food

X

Z

[4 marks ]


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MARKING SCHEMESTATION 1

Force is required in most of our daily activities. All activities thatinvolve movement of the body require force. Force can change theshape, position, speed or direction of the movement of an object.There are many types of forces.

In the following task, you will identify four types of forces.

Materials/ apparatus

A coin

A plasticine ball

A plastic ruler

Wool cloth

Some bits of tissue paper

Two magnets

Procedure

Carry out the activities below. Then, write down your observation andidentify the four types of forces.

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 bar magnet.5. Record your observations in the table given.


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STATION 1

GROUP NUMBER:________________________________

Complete the table below.

Activity Observation Type of force

1. A coin is slided onthe floor.

The coin stopmoving after a shortwhile.

Frictional force

2. A plasticine ball is

dropped to thefloor.

The plasticine ball

fall to the ground.

Gravitational force

3. A plastic ruler,rubbed with awoolen cloth, isbrought close tosome tiny bits of

paper.

The tiny bits oftissue paper areattracted to theruler

Electrostatic force

4. The south pole of abar magnet isbrought close tothe north pole ofanother bar magnet.

Unlike poles ofmagnets attract

Magnetic force

[8 marks]Conclusion

2. Force can change the shape,position and directionof the movement of an object.

[2 marks]


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STATION 2

Power is the rate of doing work, that is, the work done in

one second.

WORK DONE (J) = FORCE (N) X DISTANCE (m)

POWER (WATT) = WORK DONE (J)TIME (s)

APPARATUS / MATERIALS.

Bag, stopwatch, measuring tape (meter), weighing machine.

PROCEDURE

1. Hold the bag and stand on the weighing machine. Record

your total mass in kilogram (kg) and calculate the total

weight in newtons (N).

* (1 kg has a weight of 10 N )

2. Carry the bag and run from position A to B.

3. You have to record the time taken to run from point A to B.

4. Measure the distance between A and B.

5. Record your results in the table provided.

6. Then, calculate the work done and power.


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STATION 2

GROUP NUMBER:______________________________

OBSERVATION:

Total mass = _____________

Total weight = ___________________

Distance between A and B = ____________

Time taken to run from A to B = ______________

My calculation:

Work done =

Put the value in the formulae 1 mark

Write the step and answer with unit 2 marks

Power =

Put the value in the formulae 1 mark

Write the step and answer with unit 2 marks

[10 MARKS]


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STATION 3

WHICH MUG ABSORBS MORE HEAT?

Material /apparatus

2 mugs of different colour, Bunsen burner, thermometer, water,wire gauze, tripod stand and stopwatch

PROSEDURE

5. Fill up the mugs with 100ml of water.

6. Record the initial temperature of the water in the

mugs.

7. Place both mugs in the sun / oven for 5 minutes.

8. Record the final temperature of the water inside

each mug.


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STATION 3

GROUP NUMBER:________________________________

OBSERVATION:

Typeof

mug

Temperature of water( C)

Rise in temperature(C)

Initial final

A 1 mark 1 mark 1 mark

B 1 mark 1 mark 1 mark

[6 marks]

DISCUSSION

4. Mug A // black colour has a higher rise in temperatureafter being under the sun / in the oven for 5 minutes.

5. The black surface is a good absorber of heat.

6. When heat energy is supplied to a substances thetemperature of the substances will increase// rise.

CONCLUSION

The black surface absorbs heat faster than the white surface.

[ 4 marks ]


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STATION 4

FLOWER! FLOWER! FLOWER!

Material / Apparatus:Flower, blade, magnifying glass, cover slip, glassslide, a piece of marble and microscope.

Steps:

1. Using the blade, carefully cut the flowerlongitudinally into halves and remove the stamen

and pistil.

2. Observe the ovule in the ovary with the help of a

magnifying glass.

3. Draw your observation and label your diagram.

4. Take one of the stamens that you have removed

from the hibiscus flower and dust some pollen

grains from the anther onto a glass slide.

5. Put a drop of water on the pollen grains and

cover the glass slide with a cover slip.

6. Observe the pollen grain under a light

microscope and draw it in the box provided.

7. Record the magnification of the microscope that

you have used to observe the pollen grain.


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STATION 4

GROUP NUMBER:____________________________________

A POLLEN GRAIN

Labeling 1 marks

Drawing 1 mark

Magnification : -1 mark

ARRANGEMENT OF OVULES IN THE OVARY

Labeling

*ovule 1 mark*ovary - 1 mark

Drawing 1 mark


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Conclusion:

3. Name the female and male gamete of the flower:

a) male gamete : pollen grain

b) female gamete : ovule

4. Male reproductive part of flower consists ofanther

and filament.

[ 4 marks ]


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STATION 5

HOW TO MEASURE THE VOLUME OF REGULAR ANDIRREGULAR SHAPED SOLIDS?

Materials: Marbles, stone, water, thread.

Apparatus: 200 ml measuring cylinder.

Methods:

6. Fill a measuring cylinder with 100 ml of water.

7. Record the initial reading of the water level.

8. Drop a stone slowly into the measuring cylinder.

9. Record the reading of the water level in the

measuring cylinder.

10. Repeat steps 1 to 4 with four marbles.


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STATION 5

GROUP NUMBER:________________________________

Observation:

Solid Initial reading

(ml)

Final reading

(ml)

Volume of solid

(ml)

Stone ( 1 mark ) ( 1 mark ) ( 1 mark )

Fourmarbles

( 1 mark ) ( 1 mark ) ( 1 mark )

Discussion:

3. Calculate the volume for one marble.

For example: 20 4 = 5 ml//cm 3

4. Why do we use four marbles and not just one marble tofind its volume ?

To get the answer more accurate.

Conclusion:

2. The volume of a regular and irregular object can bedetermined by using the water displacementmethod.


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[ 4 marks ]

STATION 6

Aim:To carry out food tests for the given solutions.

Apparatus / Materials:

Solution X, Y and Z, 3 test tubes A, B and C, 3 syringes,filter paper and Iodine solution.

Instruction:

1. Use a syringe to put 2 ml of solution X in

test tube A and one drop on the filter paper.

2. Use another syringe to put 2 ml of solution Y in test

tube B and one drop on the filter paper.

3. Repeat step 2 for solution Z in test tube C and one

drop on the filter paper.

4. Then, use a dropper to add 3 drops of iodine

solution into each of the test tubes A, B and C.

4. Record your observation in Table 1(a).


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5. Observe the filter papers and record your results in

Table 1(b).

STATION 6:

GROUP NUMBER:_________________________________

Observation:

Test tube Observation

A The solution changes from yellow to blue

black colour.B No change

C No change

Table 1 (a)

Table 1(b)[ 6 marks ]

Conclusion:

Test tube A contains starch and test tube C contains oil.

1. Name the class of food in Solution X and Solution Z.

Solution Class of food

Filter paper Observation

Solution X No change

Solution Y No change

Solution Z Transparent spot is formed on the filter paper.


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X Carbohydrates

Z Fat

[ 4 marks ]

MATERIALS AND APPARATUS

Question Apparatus Quantity Material Quantity

1 Coin

Plasticine

Plastic ruler

Wool cloth

Tissue paper

Magnet bar

11 box

1

1 piece1 box2 bar

2 School bag

Stopwatch

Measuring tape

Weighing

machine

1111

3 Mug

Bunsen burner

Thermometer

Wire gauge

Tripod stand

20 (10black

mug, 10white

mug)

22222

Water 5 liter


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Stopwatch

Question Apparatus Quantity Material Quantity

4 Magnifying glass

Microscope

Glass slide

Cover slip

Forcep

Dropper

Blade

Tiles

12

262611

1 dozen10

Hibiscus

flower

water

26

200 ml

5 marble

stone

thread

measuring

cylinder

205

1 roll200 ml

6 test tube

beaker syringe

dropper

filter paper

78333

2 boxes

Starch

solution Albumen

Oil

iodine

500 ml

500 ml500 ml1 bottle


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Set 1 sains tingkatan 3

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