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During a HL History Paper 3 exam, you have to write 3 essays in 2hrs and 30 minutes, plus 5 minutes reading time at the start. That's 5 minutes to choose ALL your questions and then 50 minutes per essay ques...

Begin by asking yourself what you want the essay to tell the reader at the end. No matter how your essay meanders, it should always come to a stop at the end with an answer (or something resembling an answer...

There are more ways how to solve such equation:You can use the quadratic formula after rearranging the equation into the standard form. That is the safest way because you just learn the formula and use it ov...

The resistance of a conductor increases with temperature. This is because as the temperature increases the atomic lattice of the conductor has more energy so begins to vibrate more. This means it is more lik...

Melting point decreases going from lithium to sodium because sodium is lower down group one therefore it has a greater number of shells. A greater number of shells means a greater atomic radius - a greater s...