[P4 Science - J1 Chemistry: Heat & reaction between oxygen & ethanol] You often know heat as a dangerous form of energy. The reason kids are often not allowed in the kitchen without supervision, of course, is because they rely on their eyes too much. They're not carefu...

[P6 Maths and beyond: Circles]

The following question is a tricky question from 1982 that a lot of people got wrong.

It's deceptive (and tempting) to use the large circle B as the point of reference when answering this question. Sure, the circumference of Circle A makes...

You might wonder at some point what parallel lines were used for. To cut wooden planks and stone bricks? To partition dough in equal sizes for cooking pizza? To make rulers and hammers and other tools?

Well, as it turns out, all of the above and more. Before the times t...

[S2 Maths - Congruence and Similarity]

When it comes to Maths, most of the things actually performed seem to be useless in today's world. When were we ever going to use the rate of water flow in real life, when we simply needed to turn on the tap and fill the kettle wit...

[P4 to S4 Science - Light & EM waves] 

As an aficionado for science since young, I often wonder where the intrigue for optical illusions one might have, arose from. The fact that they betray our intuition? The fact that they often require some deeper knowledge which, on...

[P6 Maths and beyond: Circles]

This is something that's exclusively useful for Mathematics. Whenever you come across a formula in your textbook, you should have the right to ask the teacher how the formula is derived, where it comes from. For example, let's say you have...

[P4 - S4 Science & Biology: Micro-organisms & Molecular Genetics]

With Covid-19 locking us in our homes, one can't help but wonder what exactly we can do against the virus. Well, it's a good thing that there's media which can help you understand the pandemic on par...

[S1 - J1 Maths : Volume of a Pyramid (and for the brave, power sums & integration)]

On our last post, we discussed the method which the volume of a sphere is derived. But, for it to work, we need the volume of a cone to work. We have to decisively prove that the volume...

[Sec 2 & onwards Mathematics - Volume of Spheres]

You might come across some strange formulae in Maths which your teacher does not explain in detail. For example: The volume of a pyramid, (⅓ x base area x height) is easily visualised by taking a simple cube and letting...

[S3/4 Geography - Landforms]: