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When writing a GCSE history essay the most important thing to bear in mind is the structure of the essay. The structure should be orderly and you should always make it as clear as possible what you are tr...

Overall the closed system will behave by Le Chantelier's Principal where the equilibrium moves to minimise change.

So in the first case increasing the pressure will move the equilibrium to the righ...

A synapse is a gap between neurons that allows communication between different neurons using chemical messengers or neurotransmitters. Let's start simple and describe the...

The body does this through the process of negative feedback. Thermoreceptors detect the decrease in temperature, and send a signal (via sensory neurones) to the temperature-regulating centre in hypothalam...

When we discuss KEYS in music we must always look at one thing: the KEY signature. This is the bit on the first line, next to the clef (Treble, Bass, Alto or Soprano). You'll notice this as it will have S...