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Metals have a number of physical properties which make them useful to us in society, and which you will be familiar with from everyday experience. By considering the structure and bonding of metals whi...

A mass spectrometer is an important analytical instrument which scientists can use to identify the amount and type of different chemicals in a substance. In this explanation I’ll go through how the mas...

The History Aptitude Test is designed to test the way a prospective Oxford Historian approaches and analyses new information and uses their own knowledge to compare and contrast different arguments. To...

IB History places an emphasis on different skills than traditional A-levels, it is a course designed to test your historical method rather than your factual knowledge. If we take the coursework as an e...

[NOTE: An irreducible fraction (or fraction in lowest terms) is a fraction in which the numerator and denominator are integers that have no other common divisors than 1.]Given th...