Additive Inverse
If we add 0 (zero) to any number, the result is the same as the given number.
 For example,
3 + 0 = 3,       0 + 8 = 8
We say that 0 is the identity for addition. If the sum of two number […]

What is Reproduction?
Reproduction means the act of bringing to life young ones that are of the same species. In other word, reproduction is the creation of a new individual or individuals from previously […]

With Christmas fast approaching, you’re probably wondering how you can show some appreciations to your parents. You can’t put a price tag on a present for the people who gave you life… but you should still get […]

Newton’s First Law of Motion – Idea of Inertia
States that object continues in its states of rest or uniform motion in a straight line unless an external force acts on it.
It is a common experience that a bod […]

Sleep is anything but a waste of time. While many people think of catching ZZs as the body “shutting off” until morning, nodding off actually activates a complicated process that helps you feel rested and healthy […]

As you know, “The happiest time of the year” is fast approaching and with all the stressful, hectic and busy things happening in your life, it can be easy to drift away from the most joyous holiday of the year. As […]

Taking a selfie is an art form.
With front-facing phone cameras reaching saturation point, selfie devotees are having to go the extra mile to make their self-taken photos stand out from the crowd. In a quest f […]

Elements and Symbols
The atoms are particles of elements and are represented by chemical symbols. A chemical symbol is a sign and it is made up of a letter or two letters to represent the atom of the element. […]

Natural food may be healthier than processed, but some can have strange effects on our bodies.
A British graduate chemist and secondary school teacher has created a number of infographics to explain the […]

Word Problem Involving Quadratic Equations
Write a “let” statement and equation for each example. Explain the difference.

Find two consecutive integers whose sum is 13

Let x = first integer
x + 1 = […]

Introduction
Equal volumes of different substances have different masses or weights. For example 1 m3 of lead weighs differently from 1 m3 of wood. Also 1 m3 of water has a weight different from that of sulphuric […]

ALKYNES
An alkyne is a molecule made up entirely of carbon and hydrogen where on or more carbon atoms are connected by triple bonds. The general formula for an alkyne is CnH2n-2 where n is the number of carbon […]

Introduction
Sometimes we do not need to measure of calculate things exactly. We may only wish to have a rough idea, or to calculate only to a certain degree of accuracy. It is in such cases we talk of decimal […]