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Sterilising petri dishes and agar before use. Taping lid of petri dish whilst microbes are glowing. Sterilising innoculating loops before use.Carry out experiment near bunsen burner for updraft. 

It can truly add pressure to a student when they have to remember quotes for their exam. How to go about selecting and revising them is also a struggle, however here are some step by step tips on how to d...

When solving a quadratic equation like this it is useful to write it in the form (x+a)(x+b)=0, as this is simply saying 'two numbers multiplied together equal zero'. A general rule in maths is that whenev...

After the First World War and the Wall Street crash, Germany's economy was at an all time low point. The recession had increased the number of the unemployed significantly and morale was low. 

A vaccine causes white blood cells to produce anitbodies. Antibodies are proteins which kill pathogens, such as viruses and bacteria. If the body is reinfected by the same pathogen as the vaccine then ...