Today, November 19, is a day set aside by the United Nations to address issues relating to proper sanitation. This article, therefore, is to help you stay germ-free when using a public toilet. Most people wince at the thought of using a shared toilet, with door handles potentially riddled with germs and dubious looking stains
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Introduction Carbohydrates (saccharides) – Molecules consist of carbon, hydrogen and oxygen atoms. A major food source and a key form of energy for most organisms. When combined together to form polymers, carbohydrates can function as long term food storage molecules, as protective membranes for organisms and cells, and as the main structural support for plants
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Introduction The method of solving “by substitution” works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, “substituting” for the chosen variable and solving for the other. Then you back-solve for the first variable. Solve the
Changing the way we walk can change our mood and boost our happiness, a study found. It’s long been known that our mood affects our posture: sad people slump their shoulders while happy people bounce along the street. Now researchers have shown it works the other way too – making people imitate a happy or
Revealed: How the way you walk affects your MOOD Read More »
What is Matter? Matter is anything that has mass and occupies space. There are 3 states of matter, solids, liquids and gases. Examples of matter include the plants animals around us, the food we eat, the water we drink and even the air we breathe. In general, matter is built up of one or more
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Mean Deviation This is the average sum of the deviations from the arithmetic mean (i.e. the sum of the differences between the scores and the mean) divided by the total frequency. Example 1 Find the mean deviation in the following test scores, Score (x) Frequency (f) 95 1 85 1 80 1 75 4 70
Introduction Fats and oils are naturally-occurring esters of three long carboxylic acids called fatty acid with a special type of alcohol called glycerol ( propane- 1,2,3-triol). Glycerol has three carbon atoms, each with an –OH group on. These fats and oils belong to a group of compounds called lipids. Fats are solid at room temperature,
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Introduction A machine is essentially a device or tool which allows a force (or effect) applied at one point to overcome a resisting force (or load) at another point. Consider a simple machine such as a screw. We apply a small turning force at the head and the screw is able to move through a
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Substitution Methods The method of solving “by substitution” works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, “substituting” for the chosen variable and solving for the other. Then you back-solve for the first variable. Solve
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Government Girls’ Secondary School, Abaji has earned the ticket to represent Nigeria at the 2014 African Company of the Year Competition scheduled to take place in Harare, Zimbabwe in December. This was due to their superlative performance which placed them at the number one position at the just concluded 2014 National Junior Achievement Company of
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