UNDERSTANDING MAGNETISM AND HOW TO ACE SCIENCE TEST – MAGNETISM

Objects floating above one another

What is this topic:

Ans: Magnetism

Explain how this happens:

The objects are magnets or have magnets in them. The like poles are facing each other (North pole facing north pole or south pole facing south pole) so they repel each other and float above one another.

Paper clip remains at same position when iron sheet is placed between it and the magnet but floats when iron sheet is being replaced by a wooden plank

What is this topic:

Ans: Magnetism

Explain how this happens:

Although paper clip is a magnetic material, the magnetism or magnetic force of the U-shaped magnet is unable to pass through the iron sheet because iron sheet is a magnetic material, thus unable to attract the paper clip. However magnetism of the U-shaped magnet is able to pass through the wooden plank which is a non magnetic material, thus attracting the paper clip and making it float towards the U-shaped magnet.

Device use for separating iron from sand

What is this topic:

Ans: Magnetism

Explain how this happens:

When the mixture of iron and sand fall onto the belt, they will be carried to the left along the belt since the magnetic wheel is turning anti-clockwise. As the belt travels down towards container X, the sand which is non magnetic material will fall onto container X due to gravity. While the iron which is magnetic material will be attracted by the magnetic wheel as well as the magnet object placed above and between container X and Y. The iron will not fall as the magnetic force is greater than the gravity force acting on them. However once they pass by the magnet object, there is no magnetic force acting on them and they will fall into container Y due to gravity. The process repeats again until all the iron and sand are separated.

Understanding Condensation And How to Ace Science Test – Condensation

Water Droplets On the Outer Surface of Cold Bottle

What is this process:

Ans: Condensation

Explain how this happens:

The warmer water vapour in the surrounding air touches the cooler outer surface of the cold bottle and loses heat to condense into water droplets.

Water Droplets on the underside of the Lid

What is this process:

Ans: Condensation

Explain how this happens:

The warmer water vapour/ steam from the hot content in the pot touches the cooler underside surface of the pot lid and loses heat to condense into water droplets.

Water droplets found on the outer surface of the car window

What is this process:

Ans: Condensation

Explain how this happens:

The warmer water vapour in the surrounding air touches the cooler outer surface of the car window and loses heat to condense into water droplets.

Mist formed Above Pot During Cooking

What is this process:

Ans: Condensation

Explain how this happens:

The warmer water vapour/ steam from the hot content in the pot touches the cooler surrounding air and loses heat to condense into tiny water droplets called mist.

Cloud forming in the Sky

What is this process:

Ans: Condensation

Explain how this happens:

The warmer water vapour rises and touches the cooler surrounding air in the sky and loses heat to condense into tiny water droplets called cloud.

8 Tips to Ace That Oral Test

How many of you would like to score high in Oral Test? I bet all of you would, isn’t it?

Attaining outstanding results from the biannual oral examinations is possible if you learn and stick to the following constructive tips:

1) Smile and Greet the Examiner

Be polite. Give your Examiner the most brilliant smile and greet him/her. By doing so, you are highly likely to secure an impressive first impression. You may practice this at home by checking your smile in the mirror, do this a few times and you will improve and who knows you can master the ‘smile with your eyes’ look and stand out among your classmates and leave an everlasting impression on your examiner.

2) Sit Up Straight 

After greeting the examiner, you will be asked to take a seat. Now sit up straight, do not slouch, you do not want to appear to your examiner that there is no energy flowing in you nor do you want to give your examiner an impression that you are bored or unmotivated. Next, do not sit or rock your chair on two legs because you do not want to look like a fool should you lose your balance and fall.

3) Read Aloud in a Lively Tone

When reading the passage, read aloud so that your examiner does not have to strain his/her ears to ear your mumbling. Do not read in a mono-tone and should you do this,you can easily drive your examiner to boredom within seconds, so READ IN A LIVELY TONE! It will be better if you can have the appropriate expressions on your face which can definitely engage your examiner to enjoy listening to your reading and grant you with high scores.

4) Pronounce and Emphasize lightly words ending with ‘t’, ‘d’, ‘s’, ‘k’

Oral exam is test on your pronunciation thus it is important to pronounce clearly each and every word and by doing so, you are required to emphasize the ending of every words. For instance, students tend to read the word ‘baskets’ without the ‘s’ and the word ‘appeared’ without the ‘ed’. Practice reading aloud whenever you chance upon any passages. With practices, you will soon master pronouncing every single word and it will come out from your mouth automatically.

5) Slight Pause at Every Comma and Full Stop

The purpose of commas and full stops is to break up sentences. Likewise, when we read, we need to give a slight pause for every comma and full stop, otherwise, it would be rather difficult to understand the passage should you read the passage without any pauses.

6) Different Tone for Dialogues

When there is dialogues in the oral passage, give a different tone from the normal tone you read the passage.

For example, <The old man said feebly “Can you give me some food, I’ve not eaten for three days“> Portray the tone of an old man by reading the dialogue in a slow, weak and low tone

Another example, <The lady complained loudly “Your service is very lousy!“> This time round the tone for this dialogue should be in high, slightly louder and in a frustrated tone.

Should you be able to read in the appropriate tones for different dialogues, the examiner will find your oral reading entertaining.

7) Attempt to Pronounce Difficult Words

If you chance upon words that you do not know how to pronounce, break the word up and try to pronounce with confident. Do NOT Pause at the word and wait for the examiner to help you! Sometimes, the examiner does not even realize that you have difficulty reading that word because their concentration span decreases after listening repeatedly to so many students reading the same passage over and over again.

8) Thank the Examiner

Lastly, towards the end of the oral examination and before you stand up to leave, remember to thank the examiner. Once again, be polite, smile brightly. Leave the examiner your best everlasting impression.

By adhering to the above 8 tips, you are not far from attaining high score for your oral exam. Best of Luck! 🙂

Primary 6 Top School Maths Problem Sum – Percentage/ Fraction/ Ratio

Primary 6 Maths Problem sum solution involving fraction, ratio, percentage

Posted this Primary 6 maths problem sum in my Instagram, inviting students or anyone interested to challenge themselves. This is extracted from one of Singapore’s top schools maths CA1 and the question involves mathematics topics Fraction/ Percentage/ Ratio. For such questions, I would always teach and encourage my students to solve it by drawing models because it is definitely much more clearer, do you think likewise?

Should you have any comment to the above article, I sincerely welcome your feedback and thoughts. 🙂