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Biology exams rely heavily on recollection and your knowledge of key facts and processes. If you have memorised these and have a good understanding of them, questions are often just a case of manipulating...

Revising for English can be difficult, as there is no set formula for a wrong or right answer. However, you should focus on particular areas you struggle with the most, whether it is time management, reme...

Temperature is the macroscopic effect of the average kinetic energy of the subatomic particles that compose a material. Kelvins are therefore used because they are the only true scale that connects to thi...

Experimental designs establish cause and effect. This is done through manipulation of the independent variable (IV) to see the effect on the dependent variable (DV). Correlations cannot establish cause an...

Osmosis is the movement of water across a semi-permeable membrane, down the concentration gradient. This means that if there is more water on one side of a membrane, it will move to the other side until b...