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…
Sand is a mixture of small grains of rock, ranging in size from 0.0625 mm to 2 mm. Sand is made by erosion and weathering of rocks – seas or…
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…
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…
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…
Cheese is made from milk. This is most often cows’ milk, but it can be made from milk from sheep, buffaloes and goats – even yaks. It can be soft…
Unless it is something that has a soft and wobbly structure, like a jellyfish, all animals, including humans, have a stiff skeleton to support their muscles and other body tissues,…
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,…
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…
