The Effect of Music on Learning

Many students listen to music while they are studying, and say that it helps them learn. Many parents and teachers say that music is just distracting, and that students are better studying in silence. Who is right? The Mozart Effect In a study published in a scientific journal called Nature …

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The Effect of Colour on Memory

People seem to remember many things by their colour – a red bus, their blue car, a friend’s house with a yellow door. An image in colour seems more vivid and easier to remember, but does colour actually change how people remember things? Experiments show that colour seems to help …

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The Effect of Colour on Taste and Appetite

The colour of food is important – if an apple or a strawberry is red, it’s likely to be ripe, sweet and good to eat, and if a piece of meat has a blue or green tinge, it’s likely to have gone off. Colour and Appetite Sometimes just seeing a …

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The Effect of Smell on Taste

Think about the best food ever – perhaps a really good piece of chocolate cake – and remember what it tastes like and what it smells like. And then imagine what it would be like not to be able to smell it. Would it taste as good? Like the sense …

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Measuring Slopes: Make a Clinometer

A clinometer (also known as a declinometer or inclinometer) is used to measure the steepness of a slope, and can be used to work out the heights of tall things, such as buildings or trees. Making a Clinometer Take a plastic 180-degree protractor, and make a small hole where the …

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Shapes: Looking at Tessellation

Tessellation is the covering of a surface with repeating patterns of regular or irregular shapes that fit together exactly (interlock), with no gaps or overlaps. The earliest tessellations discovered date from the Sumerian civilisation, in about 4000 BC, where tessellations of clay tiles were used as decoration on walls and …

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Monitoring the Weather

Weather stations include different ways of measuring the weather. Meteorologists (people who study the weather) use weather stations to monitor the weather day by day, and use the results to make weather forecasts. Use a weather station to record the weather and see how it changes daily, weekly and monthly. …

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Watching Clouds

Clouds are collections of very small drops of water or particles of ice and they form from water vapour in the air. Types of Clouds According to the World Meteorological Office, there are ten basic cloud types: Cirrus, cirrocumulus, cirrostratus, altocumulus, altostratus, nimbostratus, cumulus, cumulonimbus, stratocumulus and stratus. The names …

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Extracting DNA

DNA (deoxyribonucleic acid) is the molecule that carries the genetic information (the instructions) for the cell, and DNA is found in all cells that have a nucleus. DNA is made of two chains of molecules known as nucleotides. The nucleotides in one chain link to the nucleotides in the other …

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Cleaning Tarnish Off Silver: Bicarbonate and Aluminium

After a while, even the best and most carefully polished silver becomes dull and tarnished, and needs to be cleaned again. Why does it tarnish, and how can it be made shiny again? Why Does Silver Tarnish? Silver reacts with the sulphur in the air to form silver sulphide. This …

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