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Exothermic = A reaction that transfers energy to its souroundings therefore the temperature of the sourounding increases (gets hotter). Can you think of an example? E.g. combustion, neutralisation. As hea...

Everyone revises differently, but I believe that the most efficient revision methods are active, rather than just reading notes. If you are a visual learner, my top tip would be making posters to put up a...

Harlow conducted a study into attachment using 8 Rhesus monkeys over a time period of 6 months. He place them in a cage with a 'mother' covered in cloth to represent a caring mother whilst also next to a ...

China's one child policy was implemented in 1979 to combat the increasing strain of a growing population. As of 2015 it has slowly been phased out in order to rectify the many social and economic issues t...

In general:·   
 Imperfect: tense to describe and explain actions in development·     
Preterite: tense to narrate and explain completed actions

Preterite: <...