## Formal Introduction to Stoichiometry

[S3 and above: Stiochiometry & Mole] Let's say you have a junior whom is currently struggling with Chemistry, specifically the mole...

## Invisible Fires

[P4 Science - J1 Chemistry: Heat & reaction between oxygen & ethanol] You often know heat as a dangerous form of energy. The reason kids...

## Circle Rotation Paradox

[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...

## Parallel Lines and Similar Figures

You might wonder at some point what parallel lines were used for. To cut wooden planks and stone bricks? To partition dough in equal...

## Squares within Triangles - A New Perspective

[S2 Maths - Congruence and Similarity] When it comes to Maths, most of the things actually performed seem to be useless in today's world....

## Optical Illusions from Polarisers

[P4 to S4 Science - Light & EM waves] As an aficionado for science since young, I often wonder where the intrigue for optical illusions...

## Proof for the Area of a Circle

[P6 Maths and beyond: Circles] This is something that's exclusively useful for Mathematics. Whenever you come across a formula in your...

## Viruses made easy

[P4 - S4 Science & Biology: Micro-organisms & Molecular Genetics] With Covid-19 locking us in our homes, one can't help but wonder what...

## Volume of a Cone: Two methods, one answer

[S1 - J1 Maths : Volume of a Pyramid (and for the brave, power sums & integration)] On our last post, we discussed the method which the...

## Where did the formula for a sphere's volume come from?

[Sec 2 & onwards Mathematics - Volume of Spheres] You might come across some strange formulae in Maths which your teacher does not...