PETROSAI N S MINI SHOWS · 2019-07-11 · Tearchers Fellowship Program 2007/COL/Mini Shows prepared by: Zaharah Binti Ismail Ali DINING COINS P E T R O S AI N S Introduction: This

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DININGCOINSFLOATINGFLOWERSDEEPINTOTHEBOTTOMADOZENNAILSCATCHINGTHERINGSTHEDANCINGMOTHBALLSHOMOPOLARMOTORRISINGCOLOUREDHOTWATER

2007

TEACHERSSNACKBOOK

Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Zaharah Binti Ismail Ali

DINING COINS

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Introduction:

This activity is to help pre-school children learn about gravity. It also involves motor skills (picking up and throwing) and cognitive skills (using numbers).

What Do I need?

• Water• 1 cent coins• A small glass• A big bowl / beaker

What Do I do?

1. Get a small empty glass.2. Put the coins into the glass. Now, put the glass in a bowl of water. Try to throw the coins into the glass.3. What happens? Why is it so difficult?

What Happened?

Your aim will not be accurate. This is because the water pushes the coins aside. The coins will drop into the bowl/beaker instead.

WaterA small glass

1 sen

1 cent coinsA big bowl / beaker

TeacHERSSnack Book2007

1 sen1 sen

1 sen1 sen

Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Zaharah Binti Ismail Ali

DINING COINSPre-school Curriculum:

Bahasa dan komunikasi

Bahasa Melayu

1.1.2 Mengecam dan membeza pelbagai jenis bunyi.1.1.5 Mendengar dan memberi geak balas terhadap:- a) arahan b) perbualan.2.2.4 Bersoal jawab secara bersopan

Bahasa Inggeris

1.4.1 Listen and carry out simple instruction.

Kognitif

4.1.1 Membilang objek 1-5.4.2.1 Membilang objek 1-107.1.1 Memerhati dan merekod pemerhatian.7.1.3 Menerangkan pemerhatian yang dilakukan.

Kerohanian dan Moral

2.5.2 Menerangkan tujuan membayar zakat.

Fizikal

2.3.1 Membilang objek ke sasaran.

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Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Intan Sya�naz Mohd. Kamal

FLOATING FLOWER

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Introduction:

This activity is to provide one of many opportunities to introduce the pre-school pupils to scientific concepts and processes by helping them to gain the scientific habit of observing what’s around them. The children are able to experiment with water. In this activity, pupils are able to explore how capillary action can cause paper to “bloom”.

What Do I Need?

What Do I Do?

1. Draw the shape as given in the picture. Paint it and cut it out.

2. Tell them to write a secret message or draw a surprise icon in the middle of the flower. Fold all the corners in so they meet in the centre.

3. Now Place this paper flower on the water very carefully.


WaterA pair of scissorsA sheet of colored paper Posters colour

Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Intan Sya�naz Mohd. Kamal

FLOATING FLOWER

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What Happened?

This paper flower will open slowly.

Do You Know Why?

• The water penetrates, by capillary action, into the little empty space in the fibres of the paper.• This makes the fibres swell, including those along the fold.• This swelling makes the lines unfold, opening the flower.

Preschool Curriculum

Development SkillsBahasa dan Komunikasi Kreativiti dan Estetika Kognitif Kerohanian dan Moral Fizikal


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Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Mohd Rasyid Bin Ramli

DEEP INTO THE BOTTOMIntroduction

This activity is about surface tension of water. Surface tension is an effect within the surface layer of a liquid that causes that layer to behave as an elastic sheet.

What Do I Need?

• 2 plastic containers• Black pepper and talcum powder• Water• Coin• Bottle cap • Liquid soap

What Do I Do?

1. Add water into the plastic containers.2. Place coin and bottle cap in each of the container.3. Sprinkle surface of the waters with black pepper and talcum powder.4. Ask a student to pick up all the items that have been inside the plastic containers without touching the sprinkled black pepper and talcum powder.

If they cannot pick the items.Try by• Put some liquid soap on your finger.• Pretend that you will touch surface of the water with magic powder.• Then pick up the item.

What Happened?

When liquid soap touches surface of the water, surface tension weakens. The par-ticles of the sprinkle powder will be pulled to the wall. This will make a hole on the surface. Thus the item can be easily pick without touching the powders.

Curriculum Specification Link1. Water and solution Science Form 2


50 sen50 sen

Talcum Power

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Soap

Soap

Liquid soap

Water

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Coin

2 plastic container

Talcum Power

Black pepper and talcum powder

Black Peper

Bottle cap

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Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Nik Azida Binti Nik Mahmood

A DOZEN NAILSIntroduction

Factors that affect the stability of an object.

What Do I Need?

What Do I Do?

1. Hammer an iron nail into the wooden board firnely.

2. Put 5 iron nails together on one side. Put the other four on the other side.

3. Place one iron on the top of others.

4. Hold all the nails at both ends and lift them?

5. Then, stabilized these iron nails on the standing still nail?

6. For the second challenge, hammer 3 iron nails on a wooden block?

7. Then, using the remaining nails, build a square on top of these three nails?


A wooden board

A hammer

A dozen iron nails

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A DOZEN NAILSWhat Happened?

When the iron nails is arranged in a pattern of two sides comb or a square on top of the three nails, the weight distributed fairly. When all these nails able to hanged freely on one standing nail, they are kept hanging due to a balance centre of gravity. The distribution of the weight through all the nails help them to be stabilized.

Another reason is, the wide area of the base is formed when the nails hang over with all the sharp ends spreading out. This will also increase the stability of the nails.

Curriculum Specifications Link

• Science Form Two syllabus.• The theme of “Technological and Industrial Development in Society”,• The learning area of “Stability”.• Learning outcomes:-1) Relate the point of equilibrium as the centre of gravity of an object2) Relate the centre of gravity to the stability of an object3) Relate how the weight affect the stability of an object4) Relate the size of base area to the stability of an object5) Suggest ways to improve the stability of an object

References:• Curriculum Specifications Science Form Two• http://www.metacafe.sciencetrick.com


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CATCHING THE RINGSIntroduction

Plastic is a form of synthetic polymer. It is made through the polymerisation pro-cess, and its raw material (ethylene-a type of gas) comes from petroleum. It is tough yet cheap and widely used in everyday applications.

What Do I Need?

• Sharpened pencils• Various type of plastic rings ( various colours)• Various type of wooden rings• Plastic bag (medium size)• Water

What Do I Do?

1. Fill a plastic bag with water and seal the top tightly.2. Put some colourful rings in the plastic bag. Allow the plastic bag to hang freely to make the activity easier.3. Stab one pencil into the plastic bag and try to get many rings without any water spilling out.4. Puncture the bag with several newly sharpened pencils, to ensure the water won’t leak out.

What Happened?

Most plastic bags are made of polyethylene. When polyethylene is heated, its mol-ecules shrink, so when you stab a pencil through the polyethylene bag, the friction of the pencil against the plastic heats the polyethylene molecules and causes them to shrink around the pencil. That’s one reason why no water will leak out.The wooden ring is easily picked by the pencil it is less dense and half float in the water compared to the plastic ring.


Water Various of plastic rings ( various colours)

Various type of wooden rings

Plastic bag (medium size)Sharpened pencils

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CATCHING THE RINGSCurriculum Specifications Link

• Science Form One syllabus. With the learning area of “Synthetic Materials in Industry – Synthetic Polimers”.• Learning outcomes:-1) Defining what synthetic polymers is2) Analysing plastics3) Practise responsible attitudes in the disposal of synthetic polymers

References:

• Curriculum Specifications Science Form Five


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Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Zaiton Binti Minhat

THE DANCING MOTHBALLSIntroduction

In the activity students think about the scientific explanation of the puzzling ‘danc-ing mothballs’

What Do I Need?

2 beakers1 box of Nopthatene (ubat gegat)2 bottle of vinegar1 bottle of salt and sugar1 bottle of Soda Bicarbonate

What Do I Do?

1. Label the 3 beakers A, B and C

2. Then pour vinegar into each of the beakers in equal amount.

3. Put 3 tablespoons of _______ into:

Beaker A Beaker B Beaker CSugar Salt Soda Bicarbonate


1 bottle of salt and sugar

1 bottle of Soda Bicarbonate

VinegarVinegar

2 bottle of vinegar

1 box of Nopthatene (ubat gegat)

3 beakers

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Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Zaiton Binti Minhat

4. Stir the mixture in each beaker

5. Lastly, take 6 balls of naphthalene

6. Now, observe the reaction. What do you see?

What Happened?

The naphthalene balls in Beaker C were dancing. The bicarbonate of soda is the compound of sodium, hydrogen, carbon and oxygen. In the chemical reaction, it breaks up in contact with the vinegar.


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Tearchers Fellowship Program 2007/COL/Mini Showsprepared by: Hashimi Bin Ismail

HOMOPOLAR MOTORIntroduction

This activity will show you on how to make an interesting homopolar motor that makes screws spin. The homopolar motor demonstrated by Michael Faraday in 1821 at the Royal Institution in London.

What Do I Need?

• Metal screw• Connecting wire• Alkaline battery • Neodymium disk magnet

What Do I Do?

1. Put a screw on the neodymium disk magnet.2. Attach the sharp point of the screw to the negative pole of the battery.3. Attach one end of the connecting wire to the positive pole of the battery.4. Bring the other end of the connecting wire towards the magnet.5. Observe what happens to the screw.


Connecting wires DU

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Alkaline battery Metal screws Neodymium disk magnet

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HOMOPOLAR MOTORWhat Happened?

A homopolar motor has a magnetic field along the axis of rotation and an electric current that at some point is not parallel to the magnetic field. Homopolar means the absence of polarity change. The screw and magnet contact the bottom of the battery cell and are held up by magnetic attraction.

Moving electric charges (an electric current) in a magnetic field experience a Lorents force. This force is perpendicular to both their direction of movement and the magnetic field. In the homopolar motor above, the electric current produced by the battery moves radially through the disk magnet, which has a magnetic field along its longitudinal axis. The resulting Lorentz force in the tangential direction pro-duces a torque in the magnet. Now it is free to rotate with the attached screw.

Curriculum Specification Link

Science Year 3 – Magnet

Science Year 5Theme: Investigating Force And Energy- Learning Area : Energy- Learning Area : Electricity- Learning Area : Heat

Science Year 4Theme: Investigating Material- Learning Area: Properties of materials


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RISING COLOURED HOT WATERIntroduction

The activity below demonstrate the principle of the rising of coloured water using hot and cold water or heat transfer.

What Do I Need?

• Dark food colouring• Small jar• Small pitcher• Transparent plastic food wrapping• Scissors• Strong rubber band• Sharp pencil• Large jar• Small towel• Large pitcher• Hot water• Cold water

What Do I Do?

1. Pour some of the food coloring into the small jar. You may need to add more later; to give your solution a deep colour. This will make the last stage easier to see.2. Fill the small jar with hot water up to the brim.3. Cut a circular piece of the plastic food wrapping about 10 cm bigger than the top of the small jar. Place it over the top and secure it with a rubber band.4. With the sharp end of the pencil, carefully make two small holes in the plastic that is covering the top of the jar.5. Place the small jar inside a large jar. Fill the large jar with cold water until the water level is about twice height of the small jar.6. Observe what is happening in the jar.


small jarlarge jar

small picther

Transparent plastic food wrapping

Sharp pencil

HUHU

Strong rubber band

Small tower

scissors

hot water

cold water

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RISING COLOURED HOT WATERWhat Happened?

The coloured hot water begins rising from the holes because it is lighter or less dense than the cold water around it.

This activity also show the concept of heat transfer where heat moves from hot areas to cold areas to form equilibrium of temperature in the water. Heat is trans-ferred when there convection current is formed due to this concept.

Curriculum Specification Link

Science Year 5

Theme : Investigating Force And Energy- Learning Area: Energy- Learning Area: Heat- Learning Area: States of Matter


Documents

PETROSAI N S MINI SHOWS · 2019-07-11 · Tearchers Fellowship Program 2007/COL/Mini Shows prepared by: Zaharah Binti Ismail Ali DINING COINS P E T R O S AI N S Introduction: This