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Initially we have two unknown variables, so we want to eliminate one of the variables (x) to solve for the other (y). The LCM of 6 and 4 is 12, so multiply each equation such that the coefficient of x is ...

What is an isotope? (To ensure the students basic understanding on isotopes) Isotopes are different atomic forms of the same element, which have same number of protons but different numbe...

Heat can travel through 3 different processes: conduction, convection and radiation. Conduction is caused by atoms bumping into each other, transferring energy and therefore heat. An example of this would...

There is a temptation in writing History essays to want to show off as much knowledge as possible. Slotting in a particularly juicy piece of information at the right time will indeed be hugely useful. How...

Chiral molecules are enantiomers. A requirement for molecule to be chiral, and therefore have 2 possible enantiomers, there must be four different substituents bonded to a carbon centre. By swapping two b...